28928340

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{2551}}^1$

素因数の和:2579

約数の個数: 120

約数和(自身を含む): 103754112

約数和(自身を除く): 74825772

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 252, 270, 315, 324, 378, 405, 420, 540, 567, 630, 756, 810, 945, 1134, 1260, 1620, 1890, 2268, 2551, 2835, 3780, 5102, 5670, 7653, 10204, 11340, 12755, 15306, 17857, 22959, 25510, 30612, 35714, 38265, 45918, 51020, 53571, 68877, 71428, 76530, 89285, 91836, 107142, 114795, 137754, 153060, 160713, 178570, 206631, 214284, 229590, 267855, 275508, 321426, 344385, 357140, 413262, 459180, 482139, 535710, 642852, 688770, 803565, 826524, 964278, 1033155, 1071420, 1377540, 1446417, 1607130, 1928556, 2066310, 2410695, 2892834, 3214260, 4132620, 4821390, 5785668, 7232085, 9642780, 14464170, 28928340]

約数ペア:

[(1, 28928340), (2, 14464170), (3, 9642780), (4, 7232085), (5, 5785668), (6, 4821390), (7, 4132620), (9, 3214260), (10, 2892834), (12, 2410695), (14, 2066310), (15, 1928556), (18, 1607130), (20, 1446417), (21, 1377540), (27, 1071420), (28, 1033155), (30, 964278), (35, 826524), (36, 803565), (42, 688770), (45, 642852), (54, 535710), (60, 482139), (63, 459180), (70, 413262), (81, 357140), (84, 344385), (90, 321426), (105, 275508), (108, 267855), (126, 229590), (135, 214284), (140, 206631), (162, 178570), (180, 160713), (189, 153060), (210, 137754), (252, 114795), (270, 107142), (315, 91836), (324, 89285), (378, 76530), (405, 71428), (420, 68877), (540, 53571), (567, 51020), (630, 45918), (756, 38265), (810, 35714), (945, 30612), (1134, 25510), (1260, 22959), (1620, 17857), (1890, 15306), (2268, 12755), (2551, 11340), (2835, 10204), (3780, 7653), (5102, 5670)]