30875000

素因数分解:

$2^3\times 5^6\times {\mathrm{13}}^1\times {\mathrm{19}}^1$

素因数の和:68

約数の個数: 112

約数和(自身を含む): 82030200

約数和(自身を除く): 51155200

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 25, 26, 38, 40, 50, 52, 65, 76, 95, 100, 104, 125, 130, 152, 190, 200, 247, 250, 260, 325, 380, 475, 494, 500, 520, 625, 650, 760, 950, 988, 1000, 1235, 1250, 1300, 1625, 1900, 1976, 2375, 2470, 2500, 2600, 3125, 3250, 3800, 4750, 4940, 5000, 6175, 6250, 6500, 8125, 9500, 9880, 11875, 12350, 12500, 13000, 15625, 16250, 19000, 23750, 24700, 25000, 30875, 31250, 32500, 40625, 47500, 49400, 59375, 61750, 62500, 65000, 81250, 95000, 118750, 123500, 125000, 154375, 162500, 203125, 237500, 247000, 296875, 308750, 325000, 406250, 475000, 593750, 617500, 771875, 812500, 1187500, 1235000, 1543750, 1625000, 2375000, 3087500, 3859375, 6175000, 7718750, 15437500, 30875000]

約数ペア:

[(1, 30875000), (2, 15437500), (4, 7718750), (5, 6175000), (8, 3859375), (10, 3087500), (13, 2375000), (19, 1625000), (20, 1543750), (25, 1235000), (26, 1187500), (38, 812500), (40, 771875), (50, 617500), (52, 593750), (65, 475000), (76, 406250), (95, 325000), (100, 308750), (104, 296875), (125, 247000), (130, 237500), (152, 203125), (190, 162500), (200, 154375), (247, 125000), (250, 123500), (260, 118750), (325, 95000), (380, 81250), (475, 65000), (494, 62500), (500, 61750), (520, 59375), (625, 49400), (650, 47500), (760, 40625), (950, 32500), (988, 31250), (1000, 30875), (1235, 25000), (1250, 24700), (1300, 23750), (1625, 19000), (1900, 16250), (1976, 15625), (2375, 13000), (2470, 12500), (2500, 12350), (2600, 11875), (3125, 9880), (3250, 9500), (3800, 8125), (4750, 6500), (4940, 6250), (5000, 6175)]