8681940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{347}}^1$

素因数の和:501

約数の個数: 72

約数和(自身を含む): 26601120

約数和(自身を除く): 17919180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 139, 180, 278, 347, 417, 556, 694, 695, 834, 1041, 1251, 1388, 1390, 1668, 1735, 2082, 2085, 2502, 2780, 3123, 3470, 4164, 4170, 5004, 5205, 6246, 6255, 6940, 8340, 10410, 12492, 12510, 15615, 20820, 25020, 31230, 48233, 62460, 96466, 144699, 192932, 241165, 289398, 434097, 482330, 578796, 723495, 868194, 964660, 1446990, 1736388, 2170485, 2893980, 4340970, 8681940]

約数ペア:

[(1, 8681940), (2, 4340970), (3, 2893980), (4, 2170485), (5, 1736388), (6, 1446990), (9, 964660), (10, 868194), (12, 723495), (15, 578796), (18, 482330), (20, 434097), (30, 289398), (36, 241165), (45, 192932), (60, 144699), (90, 96466), (139, 62460), (180, 48233), (278, 31230), (347, 25020), (417, 20820), (556, 15615), (694, 12510), (695, 12492), (834, 10410), (1041, 8340), (1251, 6940), (1388, 6255), (1390, 6246), (1668, 5205), (1735, 5004), (2082, 4170), (2085, 4164), (2502, 3470), (2780, 3123)]