31275540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{727}}^1$

素因数の和:981

約数の個数: 72

約数和(自身を含む): 95397120

約数和(自身を除く): 64121580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 239, 478, 717, 727, 956, 1195, 1434, 1454, 2151, 2181, 2390, 2868, 2908, 3585, 3635, 4302, 4362, 4780, 6543, 7170, 7270, 8604, 8724, 10755, 10905, 13086, 14340, 14540, 21510, 21810, 26172, 32715, 43020, 43620, 65430, 130860, 173753, 347506, 521259, 695012, 868765, 1042518, 1563777, 1737530, 2085036, 2606295, 3127554, 3475060, 5212590, 6255108, 7818885, 10425180, 15637770, 31275540]

約数ペア:

[(1, 31275540), (2, 15637770), (3, 10425180), (4, 7818885), (5, 6255108), (6, 5212590), (9, 3475060), (10, 3127554), (12, 2606295), (15, 2085036), (18, 1737530), (20, 1563777), (30, 1042518), (36, 868765), (45, 695012), (60, 521259), (90, 347506), (180, 173753), (239, 130860), (478, 65430), (717, 43620), (727, 43020), (956, 32715), (1195, 26172), (1434, 21810), (1454, 21510), (2151, 14540), (2181, 14340), (2390, 13086), (2868, 10905), (2908, 10755), (3585, 8724), (3635, 8604), (4302, 7270), (4362, 7170), (4780, 6543)]