40438760

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{491}}^1$

素因数の和:602

約数の個数: 64

約数和(自身を含む): 95644800

約数和(自身を除く): 55206040

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 71, 116, 142, 145, 232, 284, 290, 355, 491, 568, 580, 710, 982, 1160, 1420, 1964, 2059, 2455, 2840, 3928, 4118, 4910, 8236, 9820, 10295, 14239, 16472, 19640, 20590, 28478, 34861, 41180, 56956, 69722, 71195, 82360, 113912, 139444, 142390, 174305, 278888, 284780, 348610, 569560, 697220, 1010969, 1394440, 2021938, 4043876, 5054845, 8087752, 10109690, 20219380, 40438760]

約数ペア:

[(1, 40438760), (2, 20219380), (4, 10109690), (5, 8087752), (8, 5054845), (10, 4043876), (20, 2021938), (29, 1394440), (40, 1010969), (58, 697220), (71, 569560), (116, 348610), (142, 284780), (145, 278888), (232, 174305), (284, 142390), (290, 139444), (355, 113912), (491, 82360), (568, 71195), (580, 69722), (710, 56956), (982, 41180), (1160, 34861), (1420, 28478), (1964, 20590), (2059, 19640), (2455, 16472), (2840, 14239), (3928, 10295), (4118, 9820), (4910, 8236)]