64853750

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^2\times {\mathrm{307}}^1$

素因数の和:355

約数の個数: 60

約数和(自身を含む): 132060852

約数和(自身を除く): 67207102

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 169, 250, 307, 325, 338, 614, 625, 650, 845, 1250, 1535, 1625, 1690, 3070, 3250, 3991, 4225, 7675, 7982, 8125, 8450, 15350, 16250, 19955, 21125, 38375, 39910, 42250, 51883, 76750, 99775, 103766, 105625, 191875, 199550, 211250, 259415, 383750, 498875, 518830, 997750, 1297075, 2494375, 2594150, 4988750, 6485375, 12970750, 32426875, 64853750]

約数ペア:

[(1, 64853750), (2, 32426875), (5, 12970750), (10, 6485375), (13, 4988750), (25, 2594150), (26, 2494375), (50, 1297075), (65, 997750), (125, 518830), (130, 498875), (169, 383750), (250, 259415), (307, 211250), (325, 199550), (338, 191875), (614, 105625), (625, 103766), (650, 99775), (845, 76750), (1250, 51883), (1535, 42250), (1625, 39910), (1690, 38375), (3070, 21125), (3250, 19955), (3991, 16250), (4225, 15350), (7675, 8450), (7982, 8125)]