639703476

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{30169}}^1$

素因数の和:30229

約数の個数: 72

約数和(自身を含む): 1757100800

約数和(自身を除く): 1117397324

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 31, 36, 38, 57, 62, 76, 93, 114, 124, 171, 186, 228, 279, 342, 372, 558, 589, 684, 1116, 1178, 1767, 2356, 3534, 5301, 7068, 10602, 21204, 30169, 60338, 90507, 120676, 181014, 271521, 362028, 543042, 573211, 935239, 1086084, 1146422, 1719633, 1870478, 2292844, 2805717, 3439266, 3740956, 5158899, 5611434, 6878532, 8417151, 10317798, 11222868, 16834302, 17769541, 20635596, 33668604, 35539082, 53308623, 71078164, 106617246, 159925869, 213234492, 319851738, 639703476]

約数ペア:

[(1, 639703476), (2, 319851738), (3, 213234492), (4, 159925869), (6, 106617246), (9, 71078164), (12, 53308623), (18, 35539082), (19, 33668604), (31, 20635596), (36, 17769541), (38, 16834302), (57, 11222868), (62, 10317798), (76, 8417151), (93, 6878532), (114, 5611434), (124, 5158899), (171, 3740956), (186, 3439266), (228, 2805717), (279, 2292844), (342, 1870478), (372, 1719633), (558, 1146422), (589, 1086084), (684, 935239), (1116, 573211), (1178, 543042), (1767, 362028), (2356, 271521), (3534, 181014), (5301, 120676), (7068, 90507), (10602, 60338), (21204, 30169)]