78556140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{569}}^1$

素因数の和:656

約数の個数: 144

約数和(自身を含む): 261424800

約数和(自身を除く): 182868660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 59, 60, 65, 78, 90, 117, 118, 130, 156, 177, 180, 195, 234, 236, 260, 295, 354, 390, 468, 531, 569, 585, 590, 708, 767, 780, 885, 1062, 1138, 1170, 1180, 1534, 1707, 1770, 2124, 2276, 2301, 2340, 2655, 2845, 3068, 3414, 3540, 3835, 4602, 5121, 5310, 5690, 6828, 6903, 7397, 7670, 8535, 9204, 10242, 10620, 11380, 11505, 13806, 14794, 15340, 17070, 20484, 22191, 23010, 25605, 27612, 29588, 33571, 34140, 34515, 36985, 44382, 46020, 51210, 66573, 67142, 69030, 73970, 88764, 100713, 102420, 110955, 133146, 134284, 138060, 147940, 167855, 201426, 221910, 266292, 302139, 332865, 335710, 402852, 436423, 443820, 503565, 604278, 665730, 671420, 872846, 1007130, 1208556, 1309269, 1331460, 1510695, 1745692, 2014260, 2182115, 2618538, 3021390, 3927807, 4364230, 5237076, 6042780, 6546345, 7855614, 8728460, 13092690, 15711228, 19639035, 26185380, 39278070, 78556140]

約数ペア:

[(1, 78556140), (2, 39278070), (3, 26185380), (4, 19639035), (5, 15711228), (6, 13092690), (9, 8728460), (10, 7855614), (12, 6546345), (13, 6042780), (15, 5237076), (18, 4364230), (20, 3927807), (26, 3021390), (30, 2618538), (36, 2182115), (39, 2014260), (45, 1745692), (52, 1510695), (59, 1331460), (60, 1309269), (65, 1208556), (78, 1007130), (90, 872846), (117, 671420), (118, 665730), (130, 604278), (156, 503565), (177, 443820), (180, 436423), (195, 402852), (234, 335710), (236, 332865), (260, 302139), (295, 266292), (354, 221910), (390, 201426), (468, 167855), (531, 147940), (569, 138060), (585, 134284), (590, 133146), (708, 110955), (767, 102420), (780, 100713), (885, 88764), (1062, 73970), (1138, 69030), (1170, 67142), (1180, 66573), (1534, 51210), (1707, 46020), (1770, 44382), (2124, 36985), (2276, 34515), (2301, 34140), (2340, 33571), (2655, 29588), (2845, 27612), (3068, 25605), (3414, 23010), (3540, 22191), (3835, 20484), (4602, 17070), (5121, 15340), (5310, 14794), (5690, 13806), (6828, 11505), (6903, 11380), (7397, 10620), (7670, 10242), (8535, 9204)]