78129180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{1031}}^1$

素因数の和:1467

約数の個数: 72

約数和(自身を含む): 237785184

約数和(自身を除く): 159656004

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 421, 842, 1031, 1263, 1684, 2062, 2105, 2526, 3093, 3789, 4124, 4210, 5052, 5155, 6186, 6315, 7578, 8420, 9279, 10310, 12372, 12630, 15156, 15465, 18558, 18945, 20620, 25260, 30930, 37116, 37890, 46395, 61860, 75780, 92790, 185580, 434051, 868102, 1302153, 1736204, 2170255, 2604306, 3906459, 4340510, 5208612, 6510765, 7812918, 8681020, 13021530, 15625836, 19532295, 26043060, 39064590, 78129180]

約数ペア:

[(1, 78129180), (2, 39064590), (3, 26043060), (4, 19532295), (5, 15625836), (6, 13021530), (9, 8681020), (10, 7812918), (12, 6510765), (15, 5208612), (18, 4340510), (20, 3906459), (30, 2604306), (36, 2170255), (45, 1736204), (60, 1302153), (90, 868102), (180, 434051), (421, 185580), (842, 92790), (1031, 75780), (1263, 61860), (1684, 46395), (2062, 37890), (2105, 37116), (2526, 30930), (3093, 25260), (3789, 20620), (4124, 18945), (4210, 18558), (5052, 15465), (5155, 15156), (6186, 12630), (6315, 12372), (7578, 10310), (8420, 9279)]