490184760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{1579}}^1$

素因数の和:1805

約数の個数: 128

約数和(自身を含む): 1592640000

約数和(自身を除く): 1102455240

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, 199, 260, 312, 390, 398, 520, 597, 780, 796, 995, 1194, 1560, 1579, 1592, 1990, 2388, 2587, 2985, 3158, 3980, 4737, 4776, 5174, 5970, 6316, 7761, 7895, 7960, 9474, 10348, 11940, 12632, 12935, 15522, 15790, 18948, 20527, 20696, 23685, 23880, 25870, 31044, 31580, 37896, 38805, 41054, 47370, 51740, 61581, 62088, 63160, 77610, 82108, 94740, 102635, 103480, 123162, 155220, 164216, 189480, 205270, 246324, 307905, 310440, 314221, 410540, 492648, 615810, 628442, 821080, 942663, 1231620, 1256884, 1571105, 1885326, 2463240, 2513768, 3142210, 3770652, 4084873, 4713315, 6284420, 7541304, 8169746, 9426630, 12254619, 12568840, 16339492, 18853260, 20424365, 24509238, 32678984, 37706520, 40848730, 49018476, 61273095, 81697460, 98036952, 122546190, 163394920, 245092380, 490184760]

約数ペア:

[(1, 490184760), (2, 245092380), (3, 163394920), (4, 122546190), (5, 98036952), (6, 81697460), (8, 61273095), (10, 49018476), (12, 40848730), (13, 37706520), (15, 32678984), (20, 24509238), (24, 20424365), (26, 18853260), (30, 16339492), (39, 12568840), (40, 12254619), (52, 9426630), (60, 8169746), (65, 7541304), (78, 6284420), (104, 4713315), (120, 4084873), (130, 3770652), (156, 3142210), (195, 2513768), (199, 2463240), (260, 1885326), (312, 1571105), (390, 1256884), (398, 1231620), (520, 942663), (597, 821080), (780, 628442), (796, 615810), (995, 492648), (1194, 410540), (1560, 314221), (1579, 310440), (1592, 307905), (1990, 246324), (2388, 205270), (2587, 189480), (2985, 164216), (3158, 155220), (3980, 123162), (4737, 103480), (4776, 102635), (5174, 94740), (5970, 82108), (6316, 77610), (7761, 63160), (7895, 62088), (7960, 61581), (9474, 51740), (10348, 47370), (11940, 41054), (12632, 38805), (12935, 37896), (15522, 31580), (15790, 31044), (18948, 25870), (20527, 23880), (20696, 23685)]