256775856

素因数分解:

$2^4\times 3^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{887}}^1$

素因数の和:1098

約数の個数: 80

約数和(自身を含む): 686217984

約数和(自身を除く): 429442128

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 37, 48, 74, 111, 148, 163, 222, 296, 326, 444, 489, 592, 652, 887, 888, 978, 1304, 1774, 1776, 1956, 2608, 2661, 3548, 3912, 5322, 6031, 7096, 7824, 10644, 12062, 14192, 18093, 21288, 24124, 32819, 36186, 42576, 48248, 65638, 72372, 96496, 98457, 131276, 144581, 144744, 196914, 262552, 289162, 289488, 393828, 433743, 525104, 578324, 787656, 867486, 1156648, 1575312, 1734972, 2313296, 3469944, 5349497, 6939888, 10698994, 16048491, 21397988, 32096982, 42795976, 64193964, 85591952, 128387928, 256775856]

約数ペア:

[(1, 256775856), (2, 128387928), (3, 85591952), (4, 64193964), (6, 42795976), (8, 32096982), (12, 21397988), (16, 16048491), (24, 10698994), (37, 6939888), (48, 5349497), (74, 3469944), (111, 2313296), (148, 1734972), (163, 1575312), (222, 1156648), (296, 867486), (326, 787656), (444, 578324), (489, 525104), (592, 433743), (652, 393828), (887, 289488), (888, 289162), (978, 262552), (1304, 196914), (1774, 144744), (1776, 144581), (1956, 131276), (2608, 98457), (2661, 96496), (3548, 72372), (3912, 65638), (5322, 48248), (6031, 42576), (7096, 36186), (7824, 32819), (10644, 24124), (12062, 21288), (14192, 18093)]