18669904

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:164

約数の個数: 80

約数和(自身を含む): 42068736

約数和(自身を除く): 23398832

約数列:

[1, 2, 4, 8, 11, 16, 22, 37, 44, 47, 61, 74, 88, 94, 122, 148, 176, 188, 244, 296, 376, 407, 488, 517, 592, 671, 752, 814, 976, 1034, 1342, 1628, 1739, 2068, 2257, 2684, 2867, 3256, 3478, 4136, 4514, 5368, 5734, 6512, 6956, 8272, 9028, 10736, 11468, 13912, 18056, 19129, 22936, 24827, 27824, 31537, 36112, 38258, 45872, 49654, 63074, 76516, 99308, 106079, 126148, 153032, 198616, 212158, 252296, 306064, 397232, 424316, 504592, 848632, 1166869, 1697264, 2333738, 4667476, 9334952, 18669904]

約数ペア:

[(1, 18669904), (2, 9334952), (4, 4667476), (8, 2333738), (11, 1697264), (16, 1166869), (22, 848632), (37, 504592), (44, 424316), (47, 397232), (61, 306064), (74, 252296), (88, 212158), (94, 198616), (122, 153032), (148, 126148), (176, 106079), (188, 99308), (244, 76516), (296, 63074), (376, 49654), (407, 45872), (488, 38258), (517, 36112), (592, 31537), (671, 27824), (752, 24827), (814, 22936), (976, 19129), (1034, 18056), (1342, 13912), (1628, 11468), (1739, 10736), (2068, 9028), (2257, 8272), (2684, 6956), (2867, 6512), (3256, 5734), (3478, 5368), (4136, 4514)]