765579880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{241}}^1$

素因数の和:455

約数の個数: 128

約数和(自身を含む): 1920996000

約数和(自身を除く): 1155416120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 41, 52, 65, 82, 104, 130, 149, 164, 205, 241, 260, 298, 328, 410, 482, 520, 533, 596, 745, 820, 964, 1066, 1192, 1205, 1490, 1640, 1928, 1937, 2132, 2410, 2665, 2980, 3133, 3874, 4264, 4820, 5330, 5960, 6109, 6266, 7748, 9640, 9685, 9881, 10660, 12218, 12532, 15496, 15665, 19370, 19762, 21320, 24436, 25064, 30545, 31330, 35909, 38740, 39524, 48872, 49405, 61090, 62660, 71818, 77480, 79048, 79417, 98810, 122180, 125320, 128453, 143636, 158834, 179545, 197620, 244360, 256906, 287272, 317668, 359090, 395240, 397085, 466817, 513812, 635336, 642265, 718180, 794170, 933634, 1027624, 1284530, 1436360, 1472269, 1588340, 1867268, 2334085, 2569060, 2944538, 3176680, 3734536, 4668170, 5138120, 5889076, 7361345, 9336340, 11778152, 14722690, 18672680, 19139497, 29445380, 38278994, 58890760, 76557988, 95697485, 153115976, 191394970, 382789940, 765579880]

約数ペア:

[(1, 765579880), (2, 382789940), (4, 191394970), (5, 153115976), (8, 95697485), (10, 76557988), (13, 58890760), (20, 38278994), (26, 29445380), (40, 19139497), (41, 18672680), (52, 14722690), (65, 11778152), (82, 9336340), (104, 7361345), (130, 5889076), (149, 5138120), (164, 4668170), (205, 3734536), (241, 3176680), (260, 2944538), (298, 2569060), (328, 2334085), (410, 1867268), (482, 1588340), (520, 1472269), (533, 1436360), (596, 1284530), (745, 1027624), (820, 933634), (964, 794170), (1066, 718180), (1192, 642265), (1205, 635336), (1490, 513812), (1640, 466817), (1928, 397085), (1937, 395240), (2132, 359090), (2410, 317668), (2665, 287272), (2980, 256906), (3133, 244360), (3874, 197620), (4264, 179545), (4820, 158834), (5330, 143636), (5960, 128453), (6109, 125320), (6266, 122180), (7748, 98810), (9640, 79417), (9685, 79048), (9881, 77480), (10660, 71818), (12218, 62660), (12532, 61090), (15496, 49405), (15665, 48872), (19370, 39524), (19762, 38740), (21320, 35909), (24436, 31330), (25064, 30545)]