7718750

素因数分解:

$2^1\times 5^6\times {\mathrm{13}}^1\times {\mathrm{19}}^1$

素因数の和:64

約数の個数: 56

約数和(自身を含む): 16406040

約数和(自身を除く): 8687290

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, 3125, 3250, 4750, 6175, 6250, 8125, 11875, 12350, 15625, 16250, 23750, 30875, 31250, 40625, 59375, 61750, 81250, 118750, 154375, 203125, 296875, 308750, 406250, 593750, 771875, 1543750, 3859375, 7718750]

約数ペア:

[(1, 7718750), (2, 3859375), (5, 1543750), (10, 771875), (13, 593750), (19, 406250), (25, 308750), (26, 296875), (38, 203125), (50, 154375), (65, 118750), (95, 81250), (125, 61750), (130, 59375), (190, 40625), (247, 31250), (250, 30875), (325, 23750), (475, 16250), (494, 15625), (625, 12350), (650, 11875), (950, 8125), (1235, 6250), (1250, 6175), (1625, 4750), (2375, 3250), (2470, 3125)]