220171760

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:243

約数の個数: 120

約数和(自身を含む): 555031440

約数和(自身を除く): 334859680

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 89, 107, 136, 170, 178, 214, 272, 289, 340, 356, 428, 445, 535, 578, 680, 712, 856, 890, 1070, 1156, 1360, 1424, 1445, 1513, 1712, 1780, 1819, 2140, 2312, 2890, 3026, 3560, 3638, 4280, 4624, 5780, 6052, 7120, 7276, 7565, 8560, 9095, 9523, 11560, 12104, 14552, 15130, 18190, 19046, 23120, 24208, 25721, 29104, 30260, 30923, 36380, 38092, 47615, 51442, 60520, 61846, 72760, 76184, 95230, 102884, 121040, 123692, 128605, 145520, 152368, 154615, 161891, 190460, 205768, 247384, 257210, 309230, 323782, 380920, 411536, 494768, 514420, 618460, 647564, 761840, 809455, 1028840, 1236920, 1295128, 1618910, 2057680, 2473840, 2590256, 2752147, 3237820, 5504294, 6475640, 11008588, 12951280, 13760735, 22017176, 27521470, 44034352, 55042940, 110085880, 220171760]

約数ペア:

[(1, 220171760), (2, 110085880), (4, 55042940), (5, 44034352), (8, 27521470), (10, 22017176), (16, 13760735), (17, 12951280), (20, 11008588), (34, 6475640), (40, 5504294), (68, 3237820), (80, 2752147), (85, 2590256), (89, 2473840), (107, 2057680), (136, 1618910), (170, 1295128), (178, 1236920), (214, 1028840), (272, 809455), (289, 761840), (340, 647564), (356, 618460), (428, 514420), (445, 494768), (535, 411536), (578, 380920), (680, 323782), (712, 309230), (856, 257210), (890, 247384), (1070, 205768), (1156, 190460), (1360, 161891), (1424, 154615), (1445, 152368), (1513, 145520), (1712, 128605), (1780, 123692), (1819, 121040), (2140, 102884), (2312, 95230), (2890, 76184), (3026, 72760), (3560, 61846), (3638, 60520), (4280, 51442), (4624, 47615), (5780, 38092), (6052, 36380), (7120, 30923), (7276, 30260), (7565, 29104), (8560, 25721), (9095, 24208), (9523, 23120), (11560, 19046), (12104, 18190), (14552, 15130)]