20404267580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{397}}^1\times {\mathrm{4363}}^1$

素因数の和:4819

約数の個数: 96

約数和(自身を含む): 46687119360

約数和(自身を除く): 26282851780

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 380, 397, 589, 620, 794, 1178, 1588, 1985, 2356, 2945, 3970, 4363, 5890, 7543, 7940, 8726, 11780, 12307, 15086, 17452, 21815, 24614, 30172, 37715, 43630, 49228, 61535, 75430, 82897, 87260, 123070, 135253, 150860, 165794, 233833, 246140, 270506, 331588, 414485, 467666, 541012, 676265, 828970, 935332, 1169165, 1352530, 1657940, 1732111, 2338330, 2569807, 2705060, 3464222, 4676660, 5139614, 6928444, 8660555, 10279228, 12849035, 17321110, 25698070, 32910109, 34642220, 51396140, 53695441, 65820218, 107390882, 131640436, 164550545, 214781764, 268477205, 329101090, 536954410, 658202180, 1020213379, 1073908820, 2040426758, 4080853516, 5101066895, 10202133790, 20404267580]

約数ペア:

[(1, 20404267580), (2, 10202133790), (4, 5101066895), (5, 4080853516), (10, 2040426758), (19, 1073908820), (20, 1020213379), (31, 658202180), (38, 536954410), (62, 329101090), (76, 268477205), (95, 214781764), (124, 164550545), (155, 131640436), (190, 107390882), (310, 65820218), (380, 53695441), (397, 51396140), (589, 34642220), (620, 32910109), (794, 25698070), (1178, 17321110), (1588, 12849035), (1985, 10279228), (2356, 8660555), (2945, 6928444), (3970, 5139614), (4363, 4676660), (5890, 3464222), (7543, 2705060), (7940, 2569807), (8726, 2338330), (11780, 1732111), (12307, 1657940), (15086, 1352530), (17452, 1169165), (21815, 935332), (24614, 828970), (30172, 676265), (37715, 541012), (43630, 467666), (49228, 414485), (61535, 331588), (75430, 270506), (82897, 246140), (87260, 233833), (123070, 165794), (135253, 150860)]