402020400

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:260

約数の個数: 240

約数和(自身を含む): 1355056128

約数和(自身を除く): 953035728

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 31, 40, 48, 50, 60, 62, 75, 80, 93, 100, 101, 107, 120, 124, 150, 155, 186, 200, 202, 214, 240, 248, 300, 303, 310, 321, 372, 400, 404, 428, 465, 496, 505, 535, 600, 606, 620, 642, 744, 775, 808, 856, 930, 1010, 1070, 1200, 1212, 1240, 1284, 1488, 1515, 1550, 1605, 1616, 1712, 1860, 2020, 2140, 2325, 2424, 2480, 2525, 2568, 2675, 3030, 3100, 3131, 3210, 3317, 3720, 4040, 4280, 4650, 4848, 5050, 5136, 5350, 6060, 6200, 6262, 6420, 6634, 7440, 7575, 8025, 8080, 8560, 9300, 9393, 9951, 10100, 10700, 10807, 12120, 12400, 12524, 12840, 13268, 15150, 15655, 16050, 16585, 18600, 18786, 19902, 20200, 21400, 21614, 24240, 25048, 25680, 26536, 30300, 31310, 32100, 32421, 33170, 37200, 37572, 39804, 40400, 42800, 43228, 46965, 49755, 50096, 53072, 54035, 60600, 62620, 64200, 64842, 66340, 75144, 78275, 79608, 82925, 86456, 93930, 99510, 108070, 121200, 125240, 128400, 129684, 132680, 150288, 156550, 159216, 162105, 165850, 172912, 187860, 199020, 216140, 234825, 248775, 250480, 259368, 265360, 270175, 313100, 324210, 331700, 335017, 375720, 398040, 432280, 469650, 497550, 518736, 540350, 626200, 648420, 663400, 670034, 751440, 796080, 810525, 864560, 939300, 995100, 1005051, 1080700, 1252400, 1296840, 1326800, 1340068, 1621050, 1675085, 1878600, 1990200, 2010102, 2161400, 2593680, 2680136, 3242100, 3350170, 3757200, 3980400, 4020204, 4322800, 5025255, 5360272, 6484200, 6700340, 8040408, 8375425, 10050510, 12968400, 13400680, 16080816, 16750850, 20101020, 25126275, 26801360, 33501700, 40202040, 50252550, 67003400, 80404080, 100505100, 134006800, 201010200, 402020400]

約数ペア:

[(1, 402020400), (2, 201010200), (3, 134006800), (4, 100505100), (5, 80404080), (6, 67003400), (8, 50252550), (10, 40202040), (12, 33501700), (15, 26801360), (16, 25126275), (20, 20101020), (24, 16750850), (25, 16080816), (30, 13400680), (31, 12968400), (40, 10050510), (48, 8375425), (50, 8040408), (60, 6700340), (62, 6484200), (75, 5360272), (80, 5025255), (93, 4322800), (100, 4020204), (101, 3980400), (107, 3757200), (120, 3350170), (124, 3242100), (150, 2680136), (155, 2593680), (186, 2161400), (200, 2010102), (202, 1990200), (214, 1878600), (240, 1675085), (248, 1621050), (300, 1340068), (303, 1326800), (310, 1296840), (321, 1252400), (372, 1080700), (400, 1005051), (404, 995100), (428, 939300), (465, 864560), (496, 810525), (505, 796080), (535, 751440), (600, 670034), (606, 663400), (620, 648420), (642, 626200), (744, 540350), (775, 518736), (808, 497550), (856, 469650), (930, 432280), (1010, 398040), (1070, 375720), (1200, 335017), (1212, 331700), (1240, 324210), (1284, 313100), (1488, 270175), (1515, 265360), (1550, 259368), (1605, 250480), (1616, 248775), (1712, 234825), (1860, 216140), (2020, 199020), (2140, 187860), (2325, 172912), (2424, 165850), (2480, 162105), (2525, 159216), (2568, 156550), (2675, 150288), (3030, 132680), (3100, 129684), (3131, 128400), (3210, 125240), (3317, 121200), (3720, 108070), (4040, 99510), (4280, 93930), (4650, 86456), (4848, 82925), (5050, 79608), (5136, 78275), (5350, 75144), (6060, 66340), (6200, 64842), (6262, 64200), (6420, 62620), (6634, 60600), (7440, 54035), (7575, 53072), (8025, 50096), (8080, 49755), (8560, 46965), (9300, 43228), (9393, 42800), (9951, 40400), (10100, 39804), (10700, 37572), (10807, 37200), (12120, 33170), (12400, 32421), (12524, 32100), (12840, 31310), (13268, 30300), (15150, 26536), (15655, 25680), (16050, 25048), (16585, 24240), (18600, 21614), (18786, 21400), (19902, 20200)]