208100400

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{101}}^2$

素因数の和:240

約数の個数: 180

約数和(自身を含む): 712885176

約数和(自身を除く): 504784776

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 25, 30, 34, 40, 48, 50, 51, 60, 68, 75, 80, 85, 100, 101, 102, 120, 136, 150, 170, 200, 202, 204, 240, 255, 272, 300, 303, 340, 400, 404, 408, 425, 505, 510, 600, 606, 680, 808, 816, 850, 1010, 1020, 1200, 1212, 1275, 1360, 1515, 1616, 1700, 1717, 2020, 2040, 2424, 2525, 2550, 3030, 3400, 3434, 4040, 4080, 4848, 5050, 5100, 5151, 6060, 6800, 6868, 7575, 8080, 8585, 10100, 10200, 10201, 10302, 12120, 13736, 15150, 17170, 20200, 20400, 20402, 20604, 24240, 25755, 27472, 30300, 30603, 34340, 40400, 40804, 41208, 42925, 51005, 51510, 60600, 61206, 68680, 81608, 82416, 85850, 102010, 103020, 121200, 122412, 128775, 137360, 153015, 163216, 171700, 173417, 204020, 206040, 244824, 255025, 257550, 306030, 343400, 346834, 408040, 412080, 489648, 510050, 515100, 520251, 612060, 686800, 693668, 765075, 816080, 867085, 1020100, 1030200, 1040502, 1224120, 1387336, 1530150, 1734170, 2040200, 2060400, 2081004, 2448240, 2601255, 2774672, 3060300, 3468340, 4080400, 4162008, 4335425, 5202510, 6120600, 6936680, 8324016, 8670850, 10405020, 12241200, 13006275, 13873360, 17341700, 20810040, 26012550, 34683400, 41620080, 52025100, 69366800, 104050200, 208100400]

約数ペア:

[(1, 208100400), (2, 104050200), (3, 69366800), (4, 52025100), (5, 41620080), (6, 34683400), (8, 26012550), (10, 20810040), (12, 17341700), (15, 13873360), (16, 13006275), (17, 12241200), (20, 10405020), (24, 8670850), (25, 8324016), (30, 6936680), (34, 6120600), (40, 5202510), (48, 4335425), (50, 4162008), (51, 4080400), (60, 3468340), (68, 3060300), (75, 2774672), (80, 2601255), (85, 2448240), (100, 2081004), (101, 2060400), (102, 2040200), (120, 1734170), (136, 1530150), (150, 1387336), (170, 1224120), (200, 1040502), (202, 1030200), (204, 1020100), (240, 867085), (255, 816080), (272, 765075), (300, 693668), (303, 686800), (340, 612060), (400, 520251), (404, 515100), (408, 510050), (425, 489648), (505, 412080), (510, 408040), (600, 346834), (606, 343400), (680, 306030), (808, 257550), (816, 255025), (850, 244824), (1010, 206040), (1020, 204020), (1200, 173417), (1212, 171700), (1275, 163216), (1360, 153015), (1515, 137360), (1616, 128775), (1700, 122412), (1717, 121200), (2020, 103020), (2040, 102010), (2424, 85850), (2525, 82416), (2550, 81608), (3030, 68680), (3400, 61206), (3434, 60600), (4040, 51510), (4080, 51005), (4848, 42925), (5050, 41208), (5100, 40804), (5151, 40400), (6060, 34340), (6800, 30603), (6868, 30300), (7575, 27472), (8080, 25755), (8585, 24240), (10100, 20604), (10200, 20402), (10201, 20400), (10302, 20200), (12120, 17170), (13736, 15150)]