71800810

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:295

約数の個数: 64

約数和(自身を含む): 143337600

約数和(自身を除く): 71536790

約数列:

[1, 2, 5, 10, 19, 29, 38, 58, 83, 95, 145, 157, 166, 190, 290, 314, 415, 551, 785, 830, 1102, 1570, 1577, 2407, 2755, 2983, 3154, 4553, 4814, 5510, 5966, 7885, 9106, 12035, 13031, 14915, 15770, 22765, 24070, 26062, 29830, 45530, 45733, 65155, 86507, 91466, 130310, 173014, 228665, 247589, 377899, 432535, 457330, 495178, 755798, 865070, 1237945, 1889495, 2475890, 3778990, 7180081, 14360162, 35900405, 71800810]

約数ペア:

[(1, 71800810), (2, 35900405), (5, 14360162), (10, 7180081), (19, 3778990), (29, 2475890), (38, 1889495), (58, 1237945), (83, 865070), (95, 755798), (145, 495178), (157, 457330), (166, 432535), (190, 377899), (290, 247589), (314, 228665), (415, 173014), (551, 130310), (785, 91466), (830, 86507), (1102, 65155), (1570, 45733), (1577, 45530), (2407, 29830), (2755, 26062), (2983, 24070), (3154, 22765), (4553, 15770), (4814, 14915), (5510, 13031), (5966, 12035), (7885, 9106)]