638002816

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{311}}^1$

素因数の和:414

約数の個数: 128

約数和(自身を含む): 1466449920

約数和(自身を除く): 828447104

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 47, 62, 64, 88, 94, 124, 128, 176, 188, 248, 311, 341, 352, 376, 496, 517, 622, 682, 704, 752, 992, 1034, 1244, 1364, 1408, 1457, 1504, 1984, 2068, 2488, 2728, 2914, 3008, 3421, 3968, 4136, 4976, 5456, 5828, 6016, 6842, 8272, 9641, 9952, 10912, 11656, 13684, 14617, 16027, 16544, 19282, 19904, 21824, 23312, 27368, 29234, 32054, 33088, 38564, 39808, 43648, 46624, 54736, 58468, 64108, 66176, 77128, 93248, 106051, 109472, 116936, 128216, 154256, 160787, 186496, 212102, 218944, 233872, 256432, 308512, 321574, 424204, 437888, 453127, 467744, 512864, 617024, 643148, 848408, 906254, 935488, 1025728, 1234048, 1286296, 1696816, 1812508, 1870976, 2051456, 2572592, 3393632, 3625016, 4984397, 5145184, 6787264, 7250032, 9968794, 10290368, 13574528, 14500064, 19937588, 20580736, 29000128, 39875176, 58000256, 79750352, 159500704, 319001408, 638002816]

約数ペア:

[(1, 638002816), (2, 319001408), (4, 159500704), (8, 79750352), (11, 58000256), (16, 39875176), (22, 29000128), (31, 20580736), (32, 19937588), (44, 14500064), (47, 13574528), (62, 10290368), (64, 9968794), (88, 7250032), (94, 6787264), (124, 5145184), (128, 4984397), (176, 3625016), (188, 3393632), (248, 2572592), (311, 2051456), (341, 1870976), (352, 1812508), (376, 1696816), (496, 1286296), (517, 1234048), (622, 1025728), (682, 935488), (704, 906254), (752, 848408), (992, 643148), (1034, 617024), (1244, 512864), (1364, 467744), (1408, 453127), (1457, 437888), (1504, 424204), (1984, 321574), (2068, 308512), (2488, 256432), (2728, 233872), (2914, 218944), (3008, 212102), (3421, 186496), (3968, 160787), (4136, 154256), (4976, 128216), (5456, 116936), (5828, 109472), (6016, 106051), (6842, 93248), (8272, 77128), (9641, 66176), (9952, 64108), (10912, 58468), (11656, 54736), (13684, 46624), (14617, 43648), (16027, 39808), (16544, 38564), (19282, 33088), (19904, 32054), (21824, 29234), (23312, 27368)]