77187500

素因数分解:

$2^2\times 5^7\times {\mathrm{13}}^1\times {\mathrm{19}}^1$

素因数の和:71

約数の個数: 96

約数和(自身を含む): 191405760

約数和(自身を除く): 114218260

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, 78125, 81250, 118750, 123500, 154375, 156250, 162500, 203125, 237500, 296875, 308750, 312500, 406250, 593750, 617500, 771875, 812500, 1015625, 1187500, 1484375, 1543750, 2031250, 2968750, 3087500, 3859375, 4062500, 5937500, 7718750, 15437500, 19296875, 38593750, 77187500]

約数ペア:

[(1, 77187500), (2, 38593750), (4, 19296875), (5, 15437500), (10, 7718750), (13, 5937500), (19, 4062500), (20, 3859375), (25, 3087500), (26, 2968750), (38, 2031250), (50, 1543750), (52, 1484375), (65, 1187500), (76, 1015625), (95, 812500), (100, 771875), (125, 617500), (130, 593750), (190, 406250), (247, 312500), (250, 308750), (260, 296875), (325, 237500), (380, 203125), (475, 162500), (494, 156250), (500, 154375), (625, 123500), (650, 118750), (950, 81250), (988, 78125), (1235, 62500), (1250, 61750), (1300, 59375), (1625, 47500), (1900, 40625), (2375, 32500), (2470, 31250), (2500, 30875), (3125, 24700), (3250, 23750), (4750, 16250), (4940, 15625), (6175, 12500), (6250, 12350), (6500, 11875), (8125, 9500)]