257199372

素因数分解:

$2^2\times 3^2\times {\mathrm{167}}^1\times {\mathrm{179}}^1\times {\mathrm{239}}^1$

素因数の和:595

約数の個数: 72

約数和(自身を含む): 660441600

約数和(自身を除く): 403242228

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 167, 179, 239, 334, 358, 478, 501, 537, 668, 716, 717, 956, 1002, 1074, 1434, 1503, 1611, 2004, 2148, 2151, 2868, 3006, 3222, 4302, 6012, 6444, 8604, 29893, 39913, 42781, 59786, 79826, 85562, 89679, 119572, 119739, 128343, 159652, 171124, 179358, 239478, 256686, 269037, 358716, 359217, 385029, 478956, 513372, 538074, 718434, 770058, 1076148, 1436868, 1540116, 7144427, 14288854, 21433281, 28577708, 42866562, 64299843, 85733124, 128599686, 257199372]

約数ペア:

[(1, 257199372), (2, 128599686), (3, 85733124), (4, 64299843), (6, 42866562), (9, 28577708), (12, 21433281), (18, 14288854), (36, 7144427), (167, 1540116), (179, 1436868), (239, 1076148), (334, 770058), (358, 718434), (478, 538074), (501, 513372), (537, 478956), (668, 385029), (716, 359217), (717, 358716), (956, 269037), (1002, 256686), (1074, 239478), (1434, 179358), (1503, 171124), (1611, 159652), (2004, 128343), (2148, 119739), (2151, 119572), (2868, 89679), (3006, 85562), (3222, 79826), (4302, 59786), (6012, 42781), (6444, 39913), (8604, 29893)]