90981500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:256

約数の個数: 96

約数和(自身を含む): 213944640

約数和(自身を除く): 122963140

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 61, 76, 95, 100, 122, 125, 157, 190, 244, 250, 305, 314, 380, 475, 500, 610, 628, 785, 950, 1159, 1220, 1525, 1570, 1900, 2318, 2375, 2983, 3050, 3140, 3925, 4636, 4750, 5795, 5966, 6100, 7625, 7850, 9500, 9577, 11590, 11932, 14915, 15250, 15700, 19154, 19625, 23180, 28975, 29830, 30500, 38308, 39250, 47885, 57950, 59660, 74575, 78500, 95770, 115900, 144875, 149150, 181963, 191540, 239425, 289750, 298300, 363926, 372875, 478850, 579500, 727852, 745750, 909815, 957700, 1197125, 1491500, 1819630, 2394250, 3639260, 4549075, 4788500, 9098150, 18196300, 22745375, 45490750, 90981500]

約数ペア:

[(1, 90981500), (2, 45490750), (4, 22745375), (5, 18196300), (10, 9098150), (19, 4788500), (20, 4549075), (25, 3639260), (38, 2394250), (50, 1819630), (61, 1491500), (76, 1197125), (95, 957700), (100, 909815), (122, 745750), (125, 727852), (157, 579500), (190, 478850), (244, 372875), (250, 363926), (305, 298300), (314, 289750), (380, 239425), (475, 191540), (500, 181963), (610, 149150), (628, 144875), (785, 115900), (950, 95770), (1159, 78500), (1220, 74575), (1525, 59660), (1570, 57950), (1900, 47885), (2318, 39250), (2375, 38308), (2983, 30500), (3050, 29830), (3140, 28975), (3925, 23180), (4636, 19625), (4750, 19154), (5795, 15700), (5966, 15250), (6100, 14915), (7625, 11932), (7850, 11590), (9500, 9577)]