28285320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{223}}^1$

素因数の和:395

約数の個数: 128

約数和(自身を含む): 98058240

約数和(自身を除く): 69772920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 151, 168, 210, 223, 280, 302, 420, 446, 453, 604, 669, 755, 840, 892, 906, 1057, 1115, 1208, 1338, 1510, 1561, 1784, 1812, 2114, 2230, 2265, 2676, 3020, 3122, 3171, 3345, 3624, 4228, 4460, 4530, 4683, 5285, 5352, 6040, 6244, 6342, 6690, 7805, 8456, 8920, 9060, 9366, 10570, 12488, 12684, 13380, 15610, 15855, 18120, 18732, 21140, 23415, 25368, 26760, 31220, 31710, 33673, 37464, 42280, 46830, 62440, 63420, 67346, 93660, 101019, 126840, 134692, 168365, 187320, 202038, 235711, 269384, 336730, 404076, 471422, 505095, 673460, 707133, 808152, 942844, 1010190, 1178555, 1346920, 1414266, 1885688, 2020380, 2357110, 2828532, 3535665, 4040760, 4714220, 5657064, 7071330, 9428440, 14142660, 28285320]

約数ペア:

[(1, 28285320), (2, 14142660), (3, 9428440), (4, 7071330), (5, 5657064), (6, 4714220), (7, 4040760), (8, 3535665), (10, 2828532), (12, 2357110), (14, 2020380), (15, 1885688), (20, 1414266), (21, 1346920), (24, 1178555), (28, 1010190), (30, 942844), (35, 808152), (40, 707133), (42, 673460), (56, 505095), (60, 471422), (70, 404076), (84, 336730), (105, 269384), (120, 235711), (140, 202038), (151, 187320), (168, 168365), (210, 134692), (223, 126840), (280, 101019), (302, 93660), (420, 67346), (446, 63420), (453, 62440), (604, 46830), (669, 42280), (755, 37464), (840, 33673), (892, 31710), (906, 31220), (1057, 26760), (1115, 25368), (1208, 23415), (1338, 21140), (1510, 18732), (1561, 18120), (1784, 15855), (1812, 15610), (2114, 13380), (2230, 12684), (2265, 12488), (2676, 10570), (3020, 9366), (3122, 9060), (3171, 8920), (3345, 8456), (3624, 7805), (4228, 6690), (4460, 6342), (4530, 6244), (4683, 6040), (5285, 5352)]