18957250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1$

素因数の和:356

約数の個数: 64

約数和(自身を含む): 40360320

約数和(自身を除く): 21403070

約数列:

[1, 2, 5, 10, 13, 19, 25, 26, 38, 50, 65, 95, 125, 130, 190, 247, 250, 307, 325, 475, 494, 614, 650, 950, 1235, 1535, 1625, 2375, 2470, 3070, 3250, 3991, 4750, 5833, 6175, 7675, 7982, 11666, 12350, 15350, 19955, 29165, 30875, 38375, 39910, 58330, 61750, 75829, 76750, 99775, 145825, 151658, 199550, 291650, 379145, 498875, 729125, 758290, 997750, 1458250, 1895725, 3791450, 9478625, 18957250]

約数ペア:

[(1, 18957250), (2, 9478625), (5, 3791450), (10, 1895725), (13, 1458250), (19, 997750), (25, 758290), (26, 729125), (38, 498875), (50, 379145), (65, 291650), (95, 199550), (125, 151658), (130, 145825), (190, 99775), (247, 76750), (250, 75829), (307, 61750), (325, 58330), (475, 39910), (494, 38375), (614, 30875), (650, 29165), (950, 19955), (1235, 15350), (1535, 12350), (1625, 11666), (2375, 7982), (2470, 7675), (3070, 6175), (3250, 5833), (3991, 4750)]