308750

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1$

素因数の和:54

約数の個数: 40

約数和(自身を含む): 656040

約数和(自身を除く): 347290

約数列:

[1, 2, 5, 10, 13, 19, 25, 26, 38, 50, 65, 95, 125, 130, 190, 247, 250, 325, 475, 494, 625, 650, 950, 1235, 1250, 1625, 2375, 2470, 3250, 4750, 6175, 8125, 11875, 12350, 16250, 23750, 30875, 61750, 154375, 308750]

約数ペア:

[(1, 308750), (2, 154375), (5, 61750), (10, 30875), (13, 23750), (19, 16250), (25, 12350), (26, 11875), (38, 8125), (50, 6175), (65, 4750), (95, 3250), (125, 2470), (130, 2375), (190, 1625), (247, 1250), (250, 1235), (325, 950), (475, 650), (494, 625)]