249236520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{811}}^1$

素因数の和:1035

約数の個数: 128

約数和(自身を含む): 810311040

約数和(自身を除く): 561074520

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, 197, 260, 312, 390, 394, 520, 591, 780, 788, 811, 985, 1182, 1560, 1576, 1622, 1970, 2364, 2433, 2561, 2955, 3244, 3940, 4055, 4728, 4866, 5122, 5910, 6488, 7683, 7880, 8110, 9732, 10244, 10543, 11820, 12165, 12805, 15366, 16220, 19464, 20488, 21086, 23640, 24330, 25610, 30732, 31629, 32440, 38415, 42172, 48660, 51220, 52715, 61464, 63258, 76830, 84344, 97320, 102440, 105430, 126516, 153660, 158145, 159767, 210860, 253032, 307320, 316290, 319534, 421720, 479301, 632580, 639068, 798835, 958602, 1265160, 1278136, 1597670, 1917204, 2076971, 2396505, 3195340, 3834408, 4153942, 4793010, 6230913, 6390680, 8307884, 9586020, 10384855, 12461826, 16615768, 19172040, 20769710, 24923652, 31154565, 41539420, 49847304, 62309130, 83078840, 124618260, 249236520]

約数ペア:

[(1, 249236520), (2, 124618260), (3, 83078840), (4, 62309130), (5, 49847304), (6, 41539420), (8, 31154565), (10, 24923652), (12, 20769710), (13, 19172040), (15, 16615768), (20, 12461826), (24, 10384855), (26, 9586020), (30, 8307884), (39, 6390680), (40, 6230913), (52, 4793010), (60, 4153942), (65, 3834408), (78, 3195340), (104, 2396505), (120, 2076971), (130, 1917204), (156, 1597670), (195, 1278136), (197, 1265160), (260, 958602), (312, 798835), (390, 639068), (394, 632580), (520, 479301), (591, 421720), (780, 319534), (788, 316290), (811, 307320), (985, 253032), (1182, 210860), (1560, 159767), (1576, 158145), (1622, 153660), (1970, 126516), (2364, 105430), (2433, 102440), (2561, 97320), (2955, 84344), (3244, 76830), (3940, 63258), (4055, 61464), (4728, 52715), (4866, 51220), (5122, 48660), (5910, 42172), (6488, 38415), (7683, 32440), (7880, 31629), (8110, 30732), (9732, 25610), (10244, 24330), (10543, 23640), (11820, 21086), (12165, 20488), (12805, 19464), (15366, 16220)]