78120

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1$

素因数の和:55

約数の個数: 96

約数和(自身を含む): 299520

約数和(自身を除く): 221400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 31, 35, 36, 40, 42, 45, 56, 60, 62, 63, 70, 72, 84, 90, 93, 105, 120, 124, 126, 140, 155, 168, 180, 186, 210, 217, 248, 252, 279, 280, 310, 315, 360, 372, 420, 434, 465, 504, 558, 620, 630, 651, 744, 840, 868, 930, 1085, 1116, 1240, 1260, 1302, 1395, 1736, 1860, 1953, 2170, 2232, 2520, 2604, 2790, 3255, 3720, 3906, 4340, 5208, 5580, 6510, 7812, 8680, 9765, 11160, 13020, 15624, 19530, 26040, 39060, 78120]

約数ペア:

[(1, 78120), (2, 39060), (3, 26040), (4, 19530), (5, 15624), (6, 13020), (7, 11160), (8, 9765), (9, 8680), (10, 7812), (12, 6510), (14, 5580), (15, 5208), (18, 4340), (20, 3906), (21, 3720), (24, 3255), (28, 2790), (30, 2604), (31, 2520), (35, 2232), (36, 2170), (40, 1953), (42, 1860), (45, 1736), (56, 1395), (60, 1302), (62, 1260), (63, 1240), (70, 1116), (72, 1085), (84, 930), (90, 868), (93, 840), (105, 744), (120, 651), (124, 630), (126, 620), (140, 558), (155, 504), (168, 465), (180, 434), (186, 420), (210, 372), (217, 360), (248, 315), (252, 310), (279, 280)]