15437500

素因数分解:

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

素因数の和:66

約数の個数: 84

約数和(自身を含む): 38280760

約数和(自身を除く): 22843260

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 25, 26, 38, 50, 52, 65, 76, 95, 100, 125, 130, 190, 247, 250, 260, 325, 380, 475, 494, 500, 625, 650, 950, 988, 1235, 1250, 1300, 1625, 1900, 2375, 2470, 2500, 3125, 3250, 4750, 4940, 6175, 6250, 6500, 8125, 9500, 11875, 12350, 12500, 15625, 16250, 23750, 24700, 30875, 31250, 32500, 40625, 47500, 59375, 61750, 62500, 81250, 118750, 123500, 154375, 162500, 203125, 237500, 296875, 308750, 406250, 593750, 617500, 771875, 812500, 1187500, 1543750, 3087500, 3859375, 7718750, 15437500]

約数ペア:

[(1, 15437500), (2, 7718750), (4, 3859375), (5, 3087500), (10, 1543750), (13, 1187500), (19, 812500), (20, 771875), (25, 617500), (26, 593750), (38, 406250), (50, 308750), (52, 296875), (65, 237500), (76, 203125), (95, 162500), (100, 154375), (125, 123500), (130, 118750), (190, 81250), (247, 62500), (250, 61750), (260, 59375), (325, 47500), (380, 40625), (475, 32500), (494, 31250), (500, 30875), (625, 24700), (650, 23750), (950, 16250), (988, 15625), (1235, 12500), (1250, 12350), (1300, 11875), (1625, 9500), (1900, 8125), (2375, 6500), (2470, 6250), (2500, 6175), (3125, 4940), (3250, 4750)]