208710840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{397}}^1$

素因数の和:761

約数の個数: 128

約数和(自身を含む): 678000960

約数和(自身を除く): 469290120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 337, 390, 397, 520, 674, 780, 794, 1011, 1191, 1348, 1560, 1588, 1685, 1985, 2022, 2382, 2696, 3176, 3370, 3970, 4044, 4381, 4764, 5055, 5161, 5955, 6740, 7940, 8088, 8762, 9528, 10110, 10322, 11910, 13143, 13480, 15483, 15880, 17524, 20220, 20644, 21905, 23820, 25805, 26286, 30966, 35048, 40440, 41288, 43810, 47640, 51610, 52572, 61932, 65715, 77415, 87620, 103220, 105144, 123864, 131430, 133789, 154830, 175240, 206440, 262860, 267578, 309660, 401367, 525720, 535156, 619320, 668945, 802734, 1070312, 1337890, 1605468, 1739257, 2006835, 2675780, 3210936, 3478514, 4013670, 5217771, 5351560, 6957028, 8027340, 8696285, 10435542, 13914056, 16054680, 17392570, 20871084, 26088855, 34785140, 41742168, 52177710, 69570280, 104355420, 208710840]

約数ペア:

[(1, 208710840), (2, 104355420), (3, 69570280), (4, 52177710), (5, 41742168), (6, 34785140), (8, 26088855), (10, 20871084), (12, 17392570), (13, 16054680), (15, 13914056), (20, 10435542), (24, 8696285), (26, 8027340), (30, 6957028), (39, 5351560), (40, 5217771), (52, 4013670), (60, 3478514), (65, 3210936), (78, 2675780), (104, 2006835), (120, 1739257), (130, 1605468), (156, 1337890), (195, 1070312), (260, 802734), (312, 668945), (337, 619320), (390, 535156), (397, 525720), (520, 401367), (674, 309660), (780, 267578), (794, 262860), (1011, 206440), (1191, 175240), (1348, 154830), (1560, 133789), (1588, 131430), (1685, 123864), (1985, 105144), (2022, 103220), (2382, 87620), (2696, 77415), (3176, 65715), (3370, 61932), (3970, 52572), (4044, 51610), (4381, 47640), (4764, 43810), (5055, 41288), (5161, 40440), (5955, 35048), (6740, 30966), (7940, 26286), (8088, 25805), (8762, 23820), (9528, 21905), (10110, 20644), (10322, 20220), (11910, 17524), (13143, 15880), (13480, 15483)]