397016750

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{809}}^1$

素因数の和:990

約数の個数: 64

約数和(自身を含む): 806682240

約数和(自身を除く): 409665490

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 151, 250, 302, 325, 650, 755, 809, 1510, 1618, 1625, 1963, 3250, 3775, 3926, 4045, 7550, 8090, 9815, 10517, 18875, 19630, 20225, 21034, 37750, 40450, 49075, 52585, 98150, 101125, 105170, 122159, 202250, 244318, 245375, 262925, 490750, 525850, 610795, 1221590, 1314625, 1588067, 2629250, 3053975, 3176134, 6107950, 7940335, 15269875, 15880670, 30539750, 39701675, 79403350, 198508375, 397016750]

約数ペア:

[(1, 397016750), (2, 198508375), (5, 79403350), (10, 39701675), (13, 30539750), (25, 15880670), (26, 15269875), (50, 7940335), (65, 6107950), (125, 3176134), (130, 3053975), (151, 2629250), (250, 1588067), (302, 1314625), (325, 1221590), (650, 610795), (755, 525850), (809, 490750), (1510, 262925), (1618, 245375), (1625, 244318), (1963, 202250), (3250, 122159), (3775, 105170), (3926, 101125), (4045, 98150), (7550, 52585), (8090, 49075), (9815, 40450), (10517, 37750), (18875, 21034), (19630, 20225)]