19142500

素因数分解:

$2^2\times 5^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:87

約数の個数: 120

約数和(自身を含む): 48984320

約数和(自身を除く): 29841820

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 25, 26, 31, 38, 50, 52, 62, 65, 76, 95, 100, 124, 125, 130, 155, 190, 247, 250, 260, 310, 325, 380, 403, 475, 494, 500, 589, 620, 625, 650, 775, 806, 950, 988, 1178, 1235, 1250, 1300, 1550, 1612, 1625, 1900, 2015, 2356, 2375, 2470, 2500, 2945, 3100, 3250, 3875, 4030, 4750, 4940, 5890, 6175, 6500, 7657, 7750, 8060, 8125, 9500, 10075, 11780, 11875, 12350, 14725, 15314, 15500, 16250, 19375, 20150, 23750, 24700, 29450, 30628, 30875, 32500, 38285, 38750, 40300, 47500, 50375, 58900, 61750, 73625, 76570, 77500, 100750, 123500, 147250, 153140, 154375, 191425, 201500, 251875, 294500, 308750, 368125, 382850, 503750, 617500, 736250, 765700, 957125, 1007500, 1472500, 1914250, 3828500, 4785625, 9571250, 19142500]

約数ペア:

[(1, 19142500), (2, 9571250), (4, 4785625), (5, 3828500), (10, 1914250), (13, 1472500), (19, 1007500), (20, 957125), (25, 765700), (26, 736250), (31, 617500), (38, 503750), (50, 382850), (52, 368125), (62, 308750), (65, 294500), (76, 251875), (95, 201500), (100, 191425), (124, 154375), (125, 153140), (130, 147250), (155, 123500), (190, 100750), (247, 77500), (250, 76570), (260, 73625), (310, 61750), (325, 58900), (380, 50375), (403, 47500), (475, 40300), (494, 38750), (500, 38285), (589, 32500), (620, 30875), (625, 30628), (650, 29450), (775, 24700), (806, 23750), (950, 20150), (988, 19375), (1178, 16250), (1235, 15500), (1250, 15314), (1300, 14725), (1550, 12350), (1612, 11875), (1625, 11780), (1900, 10075), (2015, 9500), (2356, 8125), (2375, 8060), (2470, 7750), (2500, 7657), (2945, 6500), (3100, 6175), (3250, 5890), (3875, 4940), (4030, 4750)]