257831223540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{439}}^1\times {\mathrm{889871}}^1$

素因数の和:890333

約数の個数: 96

約数和(自身を含む): 789352058880

約数和(自身を除く): 531520835340

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 439, 660, 878, 1317, 1756, 2195, 2634, 4390, 4829, 5268, 6585, 8780, 9658, 13170, 14487, 19316, 24145, 26340, 28974, 48290, 57948, 72435, 96580, 144870, 289740, 889871, 1779742, 2669613, 3559484, 4449355, 5339226, 8898710, 9788581, 10678452, 13348065, 17797420, 19577162, 26696130, 29365743, 39154324, 48942905, 53392260, 58731486, 97885810, 117462972, 146828715, 195771620, 293657430, 390653369, 587314860, 781306738, 1171960107, 1562613476, 1953266845, 2343920214, 3906533690, 4297187059, 4687840428, 5859800535, 7813067380, 8594374118, 11719601070, 12891561177, 17188748236, 21485935295, 23439202140, 25783122354, 42971870590, 51566244708, 64457805885, 85943741180, 128915611770, 257831223540]

約数ペア:

[(1, 257831223540), (2, 128915611770), (3, 85943741180), (4, 64457805885), (5, 51566244708), (6, 42971870590), (10, 25783122354), (11, 23439202140), (12, 21485935295), (15, 17188748236), (20, 12891561177), (22, 11719601070), (30, 8594374118), (33, 7813067380), (44, 5859800535), (55, 4687840428), (60, 4297187059), (66, 3906533690), (110, 2343920214), (132, 1953266845), (165, 1562613476), (220, 1171960107), (330, 781306738), (439, 587314860), (660, 390653369), (878, 293657430), (1317, 195771620), (1756, 146828715), (2195, 117462972), (2634, 97885810), (4390, 58731486), (4829, 53392260), (5268, 48942905), (6585, 39154324), (8780, 29365743), (9658, 26696130), (13170, 19577162), (14487, 17797420), (19316, 13348065), (24145, 10678452), (26340, 9788581), (28974, 8898710), (48290, 5339226), (57948, 4449355), (72435, 3559484), (96580, 2669613), (144870, 1779742), (289740, 889871)]