251515648

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{773}}^1$

素因数の和:861

約数の個数: 72

約数和(自身を含む): 531570816

約数和(自身を除く): 280055168

約数列:

[1, 2, 4, 8, 16, 31, 32, 41, 62, 64, 82, 124, 128, 164, 248, 256, 328, 496, 656, 773, 992, 1271, 1312, 1546, 1984, 2542, 2624, 3092, 3968, 5084, 5248, 6184, 7936, 10168, 10496, 12368, 20336, 23963, 24736, 31693, 40672, 47926, 49472, 63386, 81344, 95852, 98944, 126772, 162688, 191704, 197888, 253544, 325376, 383408, 507088, 766816, 982483, 1014176, 1533632, 1964966, 2028352, 3067264, 3929932, 4056704, 6134528, 7859864, 8113408, 15719728, 31439456, 62878912, 125757824, 251515648]

約数ペア:

[(1, 251515648), (2, 125757824), (4, 62878912), (8, 31439456), (16, 15719728), (31, 8113408), (32, 7859864), (41, 6134528), (62, 4056704), (64, 3929932), (82, 3067264), (124, 2028352), (128, 1964966), (164, 1533632), (248, 1014176), (256, 982483), (328, 766816), (496, 507088), (656, 383408), (773, 325376), (992, 253544), (1271, 197888), (1312, 191704), (1546, 162688), (1984, 126772), (2542, 98944), (2624, 95852), (3092, 81344), (3968, 63386), (5084, 49472), (5248, 47926), (6184, 40672), (7936, 31693), (10168, 24736), (10496, 23963), (12368, 20336)]