217250040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{258631}}^1$

素因数の和:258652

約数の個数: 64

約数和(自身を含む): 744860160

約数和(自身を除く): 527610120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 258631, 517262, 775893, 1034524, 1293155, 1551786, 1810417, 2069048, 2586310, 3103572, 3620834, 3879465, 5172620, 5431251, 6207144, 7241668, 7758930, 9052085, 10345240, 10862502, 14483336, 15517860, 18104170, 21725004, 27156255, 31035720, 36208340, 43450008, 54312510, 72416680, 108625020, 217250040]

約数ペア:

[(1, 217250040), (2, 108625020), (3, 72416680), (4, 54312510), (5, 43450008), (6, 36208340), (7, 31035720), (8, 27156255), (10, 21725004), (12, 18104170), (14, 15517860), (15, 14483336), (20, 10862502), (21, 10345240), (24, 9052085), (28, 7758930), (30, 7241668), (35, 6207144), (40, 5431251), (42, 5172620), (56, 3879465), (60, 3620834), (70, 3103572), (84, 2586310), (105, 2069048), (120, 1810417), (140, 1551786), (168, 1293155), (210, 1034524), (280, 775893), (420, 517262), (840, 258631)]