20131372780

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1\times {\mathrm{2029}}^1$

素因数の和:2303

約数の個数: 96

約数和(自身を含む): 44116934400

約数和(自身を除く): 23985561620

約数列:

[1, 2, 4, 5, 10, 20, 43, 83, 86, 139, 166, 172, 215, 278, 332, 415, 430, 556, 695, 830, 860, 1390, 1660, 2029, 2780, 3569, 4058, 5977, 7138, 8116, 10145, 11537, 11954, 14276, 17845, 20290, 23074, 23908, 29885, 35690, 40580, 46148, 57685, 59770, 71380, 87247, 115370, 119540, 168407, 174494, 230740, 282031, 336814, 348988, 436235, 496091, 564062, 673628, 842035, 872470, 992182, 1128124, 1410155, 1684070, 1744940, 1984364, 2480455, 2820310, 3368140, 4960910, 5640620, 7241501, 9921820, 12127333, 14483002, 23408573, 24254666, 28966004, 36207505, 46817146, 48509332, 60636665, 72415010, 93634292, 117042865, 121273330, 144830020, 234085730, 242546660, 468171460, 1006568639, 2013137278, 4026274556, 5032843195, 10065686390, 20131372780]

約数ペア:

[(1, 20131372780), (2, 10065686390), (4, 5032843195), (5, 4026274556), (10, 2013137278), (20, 1006568639), (43, 468171460), (83, 242546660), (86, 234085730), (139, 144830020), (166, 121273330), (172, 117042865), (215, 93634292), (278, 72415010), (332, 60636665), (415, 48509332), (430, 46817146), (556, 36207505), (695, 28966004), (830, 24254666), (860, 23408573), (1390, 14483002), (1660, 12127333), (2029, 9921820), (2780, 7241501), (3569, 5640620), (4058, 4960910), (5977, 3368140), (7138, 2820310), (8116, 2480455), (10145, 1984364), (11537, 1744940), (11954, 1684070), (14276, 1410155), (17845, 1128124), (20290, 992182), (23074, 872470), (23908, 842035), (29885, 673628), (35690, 564062), (40580, 496091), (46148, 436235), (57685, 348988), (59770, 336814), (71380, 282031), (87247, 230740), (115370, 174494), (119540, 168407)]