398315280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{157}}^1$

素因数の和:246

約数の個数: 240

約数和(自身を含む): 1400749632

約数和(自身を除く): 1002434352

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 31, 33, 40, 44, 48, 55, 60, 62, 66, 80, 88, 93, 110, 120, 124, 132, 155, 157, 165, 176, 186, 220, 240, 248, 264, 310, 314, 330, 341, 372, 440, 465, 471, 496, 528, 620, 628, 660, 682, 744, 785, 880, 930, 942, 961, 1023, 1240, 1256, 1320, 1364, 1488, 1570, 1705, 1727, 1860, 1884, 1922, 2046, 2355, 2480, 2512, 2640, 2728, 2883, 3140, 3410, 3454, 3720, 3768, 3844, 4092, 4710, 4805, 4867, 5115, 5181, 5456, 5766, 6280, 6820, 6908, 7440, 7536, 7688, 8184, 8635, 9420, 9610, 9734, 10230, 10362, 10571, 11532, 12560, 13640, 13816, 14415, 14601, 15376, 16368, 17270, 18840, 19220, 19468, 20460, 20724, 21142, 23064, 24335, 25905, 27280, 27632, 28830, 29202, 31713, 34540, 37680, 38440, 38936, 40920, 41448, 42284, 46128, 48670, 51810, 52855, 53537, 57660, 58404, 63426, 69080, 73005, 76880, 77872, 81840, 82896, 84568, 97340, 103620, 105710, 107074, 115320, 116808, 126852, 138160, 146010, 150877, 158565, 160611, 169136, 194680, 207240, 211420, 214148, 230640, 233616, 253704, 267685, 292020, 301754, 317130, 321222, 389360, 414480, 422840, 428296, 452631, 507408, 535370, 584040, 603508, 634260, 642444, 754385, 803055, 845680, 856592, 905262, 1070740, 1168080, 1207016, 1268520, 1284888, 1508770, 1606110, 1659647, 1810524, 2141480, 2263155, 2414032, 2537040, 2569776, 3017540, 3212220, 3319294, 3621048, 4282960, 4526310, 4978941, 6035080, 6424440, 6638588, 7242096, 8298235, 9052620, 9957882, 12070160, 12848880, 13277176, 16596470, 18105240, 19915764, 24894705, 26554352, 33192940, 36210480, 39831528, 49789410, 66385880, 79663056, 99578820, 132771760, 199157640, 398315280]

約数ペア:

[(1, 398315280), (2, 199157640), (3, 132771760), (4, 99578820), (5, 79663056), (6, 66385880), (8, 49789410), (10, 39831528), (11, 36210480), (12, 33192940), (15, 26554352), (16, 24894705), (20, 19915764), (22, 18105240), (24, 16596470), (30, 13277176), (31, 12848880), (33, 12070160), (40, 9957882), (44, 9052620), (48, 8298235), (55, 7242096), (60, 6638588), (62, 6424440), (66, 6035080), (80, 4978941), (88, 4526310), (93, 4282960), (110, 3621048), (120, 3319294), (124, 3212220), (132, 3017540), (155, 2569776), (157, 2537040), (165, 2414032), (176, 2263155), (186, 2141480), (220, 1810524), (240, 1659647), (248, 1606110), (264, 1508770), (310, 1284888), (314, 1268520), (330, 1207016), (341, 1168080), (372, 1070740), (440, 905262), (465, 856592), (471, 845680), (496, 803055), (528, 754385), (620, 642444), (628, 634260), (660, 603508), (682, 584040), (744, 535370), (785, 507408), (880, 452631), (930, 428296), (942, 422840), (961, 414480), (1023, 389360), (1240, 321222), (1256, 317130), (1320, 301754), (1364, 292020), (1488, 267685), (1570, 253704), (1705, 233616), (1727, 230640), (1860, 214148), (1884, 211420), (1922, 207240), (2046, 194680), (2355, 169136), (2480, 160611), (2512, 158565), (2640, 150877), (2728, 146010), (2883, 138160), (3140, 126852), (3410, 116808), (3454, 115320), (3720, 107074), (3768, 105710), (3844, 103620), (4092, 97340), (4710, 84568), (4805, 82896), (4867, 81840), (5115, 77872), (5181, 76880), (5456, 73005), (5766, 69080), (6280, 63426), (6820, 58404), (6908, 57660), (7440, 53537), (7536, 52855), (7688, 51810), (8184, 48670), (8635, 46128), (9420, 42284), (9610, 41448), (9734, 40920), (10230, 38936), (10362, 38440), (10571, 37680), (11532, 34540), (12560, 31713), (13640, 29202), (13816, 28830), (14415, 27632), (14601, 27280), (15376, 25905), (16368, 24335), (17270, 23064), (18840, 21142), (19220, 20724), (19468, 20460)]