661644880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{263}}^1$

素因数の和:389

約数の個数: 160

約数和(自身を含む): 1732389120

約数和(自身を除く): 1070744240

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 41, 52, 59, 65, 80, 82, 104, 118, 130, 164, 205, 208, 236, 260, 263, 295, 328, 410, 472, 520, 526, 533, 590, 656, 767, 820, 944, 1040, 1052, 1066, 1180, 1315, 1534, 1640, 2104, 2132, 2360, 2419, 2630, 2665, 3068, 3280, 3419, 3835, 4208, 4264, 4720, 4838, 5260, 5330, 6136, 6838, 7670, 8528, 9676, 10520, 10660, 10783, 12095, 12272, 13676, 15340, 15517, 17095, 19352, 21040, 21320, 21566, 24190, 27352, 30680, 31034, 31447, 34190, 38704, 42640, 43132, 48380, 53915, 54704, 61360, 62068, 62894, 68380, 77585, 86264, 96760, 107830, 124136, 125788, 136760, 140179, 155170, 157235, 172528, 193520, 201721, 215660, 248272, 251576, 273520, 280358, 310340, 314470, 403442, 431320, 503152, 560716, 620680, 628940, 636197, 700895, 806884, 862640, 1008605, 1121432, 1241360, 1257880, 1272394, 1401790, 1613768, 2017210, 2242864, 2515760, 2544788, 2803580, 3180985, 3227536, 4034420, 5089576, 5607160, 6361970, 8068840, 8270561, 10179152, 11214320, 12723940, 16137680, 16541122, 25447880, 33082244, 41352805, 50895760, 66164488, 82705610, 132328976, 165411220, 330822440, 661644880]

約数ペア:

[(1, 661644880), (2, 330822440), (4, 165411220), (5, 132328976), (8, 82705610), (10, 66164488), (13, 50895760), (16, 41352805), (20, 33082244), (26, 25447880), (40, 16541122), (41, 16137680), (52, 12723940), (59, 11214320), (65, 10179152), (80, 8270561), (82, 8068840), (104, 6361970), (118, 5607160), (130, 5089576), (164, 4034420), (205, 3227536), (208, 3180985), (236, 2803580), (260, 2544788), (263, 2515760), (295, 2242864), (328, 2017210), (410, 1613768), (472, 1401790), (520, 1272394), (526, 1257880), (533, 1241360), (590, 1121432), (656, 1008605), (767, 862640), (820, 806884), (944, 700895), (1040, 636197), (1052, 628940), (1066, 620680), (1180, 560716), (1315, 503152), (1534, 431320), (1640, 403442), (2104, 314470), (2132, 310340), (2360, 280358), (2419, 273520), (2630, 251576), (2665, 248272), (3068, 215660), (3280, 201721), (3419, 193520), (3835, 172528), (4208, 157235), (4264, 155170), (4720, 140179), (4838, 136760), (5260, 125788), (5330, 124136), (6136, 107830), (6838, 96760), (7670, 86264), (8528, 77585), (9676, 68380), (10520, 62894), (10660, 62068), (10783, 61360), (12095, 54704), (12272, 53915), (13676, 48380), (15340, 43132), (15517, 42640), (17095, 38704), (19352, 34190), (21040, 31447), (21320, 31034), (21566, 30680), (24190, 27352)]