20522580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{317}}^1$

素因数の和:425

約数の個数: 96

約数和(自身を含む): 62826624

約数和(自身を除く): 42304044

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 83, 130, 156, 166, 195, 249, 260, 317, 332, 390, 415, 498, 634, 780, 830, 951, 996, 1079, 1245, 1268, 1585, 1660, 1902, 2158, 2490, 3170, 3237, 3804, 4121, 4316, 4755, 4980, 5395, 6340, 6474, 8242, 9510, 10790, 12363, 12948, 16185, 16484, 19020, 20605, 21580, 24726, 26311, 32370, 41210, 49452, 52622, 61815, 64740, 78933, 82420, 105244, 123630, 131555, 157866, 247260, 263110, 315732, 342043, 394665, 526220, 684086, 789330, 1026129, 1368172, 1578660, 1710215, 2052258, 3420430, 4104516, 5130645, 6840860, 10261290, 20522580]

約数ペア:

[(1, 20522580), (2, 10261290), (3, 6840860), (4, 5130645), (5, 4104516), (6, 3420430), (10, 2052258), (12, 1710215), (13, 1578660), (15, 1368172), (20, 1026129), (26, 789330), (30, 684086), (39, 526220), (52, 394665), (60, 342043), (65, 315732), (78, 263110), (83, 247260), (130, 157866), (156, 131555), (166, 123630), (195, 105244), (249, 82420), (260, 78933), (317, 64740), (332, 61815), (390, 52622), (415, 49452), (498, 41210), (634, 32370), (780, 26311), (830, 24726), (951, 21580), (996, 20605), (1079, 19020), (1245, 16484), (1268, 16185), (1585, 12948), (1660, 12363), (1902, 10790), (2158, 9510), (2490, 8242), (3170, 6474), (3237, 6340), (3804, 5395), (4121, 4980), (4316, 4755)]