154877480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{421}}^1\times {\mathrm{541}}^1$

素因数の和:990

約数の個数: 64

約数和(自身を含む): 370532880

約数和(自身を除く): 215655400

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 421, 541, 680, 842, 1082, 1684, 2105, 2164, 2705, 3368, 4210, 4328, 5410, 7157, 8420, 9197, 10820, 14314, 16840, 18394, 21640, 28628, 35785, 36788, 45985, 57256, 71570, 73576, 91970, 143140, 183940, 227761, 286280, 367880, 455522, 911044, 1138805, 1822088, 2277610, 3871937, 4555220, 7743874, 9110440, 15487748, 19359685, 30975496, 38719370, 77438740, 154877480]

約数ペア:

[(1, 154877480), (2, 77438740), (4, 38719370), (5, 30975496), (8, 19359685), (10, 15487748), (17, 9110440), (20, 7743874), (34, 4555220), (40, 3871937), (68, 2277610), (85, 1822088), (136, 1138805), (170, 911044), (340, 455522), (421, 367880), (541, 286280), (680, 227761), (842, 183940), (1082, 143140), (1684, 91970), (2105, 73576), (2164, 71570), (2705, 57256), (3368, 45985), (4210, 36788), (4328, 35785), (5410, 28628), (7157, 21640), (8420, 18394), (9197, 16840), (10820, 14314)]