255152320

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:171

約数の個数: 168

約数和(自身を含む): 673729920

約数和(自身を除く): 418577600

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 32, 34, 40, 62, 64, 68, 80, 85, 89, 124, 136, 155, 160, 170, 178, 248, 272, 289, 310, 320, 340, 356, 445, 496, 527, 544, 578, 620, 680, 712, 890, 992, 1054, 1088, 1156, 1240, 1360, 1424, 1445, 1513, 1780, 1984, 2108, 2312, 2480, 2635, 2720, 2759, 2848, 2890, 3026, 3560, 4216, 4624, 4960, 5270, 5440, 5518, 5696, 5780, 6052, 7120, 7565, 8432, 8959, 9248, 9920, 10540, 11036, 11560, 12104, 13795, 14240, 15130, 16864, 17918, 18496, 21080, 22072, 23120, 24208, 25721, 27590, 28480, 30260, 33728, 35836, 42160, 44144, 44795, 46240, 46903, 48416, 51442, 55180, 60520, 71672, 84320, 88288, 89590, 92480, 93806, 96832, 102884, 110360, 121040, 128605, 143344, 168640, 176576, 179180, 187612, 205768, 220720, 234515, 242080, 257210, 286688, 358360, 375224, 411536, 441440, 469030, 484160, 514420, 573376, 716720, 750448, 797351, 823072, 882880, 938060, 1028840, 1433440, 1500896, 1594702, 1646144, 1876120, 2057680, 2866880, 3001792, 3189404, 3752240, 3986755, 4115360, 6378808, 7504480, 7973510, 8230720, 12757616, 15008960, 15947020, 25515232, 31894040, 51030464, 63788080, 127576160, 255152320]

約数ペア:

[(1, 255152320), (2, 127576160), (4, 63788080), (5, 51030464), (8, 31894040), (10, 25515232), (16, 15947020), (17, 15008960), (20, 12757616), (31, 8230720), (32, 7973510), (34, 7504480), (40, 6378808), (62, 4115360), (64, 3986755), (68, 3752240), (80, 3189404), (85, 3001792), (89, 2866880), (124, 2057680), (136, 1876120), (155, 1646144), (160, 1594702), (170, 1500896), (178, 1433440), (248, 1028840), (272, 938060), (289, 882880), (310, 823072), (320, 797351), (340, 750448), (356, 716720), (445, 573376), (496, 514420), (527, 484160), (544, 469030), (578, 441440), (620, 411536), (680, 375224), (712, 358360), (890, 286688), (992, 257210), (1054, 242080), (1088, 234515), (1156, 220720), (1240, 205768), (1360, 187612), (1424, 179180), (1445, 176576), (1513, 168640), (1780, 143344), (1984, 128605), (2108, 121040), (2312, 110360), (2480, 102884), (2635, 96832), (2720, 93806), (2759, 92480), (2848, 89590), (2890, 88288), (3026, 84320), (3560, 71672), (4216, 60520), (4624, 55180), (4960, 51442), (5270, 48416), (5440, 46903), (5518, 46240), (5696, 44795), (5780, 44144), (6052, 42160), (7120, 35836), (7565, 33728), (8432, 30260), (8959, 28480), (9248, 27590), (9920, 25721), (10540, 24208), (11036, 23120), (11560, 22072), (12104, 21080), (13795, 18496), (14240, 17918), (15130, 16864)]