78442120

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1\times {\mathrm{227}}^1$

素因数の和:454

約数の個数: 64

約数和(自身を含む): 181725120

約数和(自身を除く): 103283000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 163, 212, 227, 265, 326, 424, 454, 530, 652, 815, 908, 1060, 1135, 1304, 1630, 1816, 2120, 2270, 3260, 4540, 6520, 8639, 9080, 12031, 17278, 24062, 34556, 37001, 43195, 48124, 60155, 69112, 74002, 86390, 96248, 120310, 148004, 172780, 185005, 240620, 296008, 345560, 370010, 481240, 740020, 1480040, 1961053, 3922106, 7844212, 9805265, 15688424, 19610530, 39221060, 78442120]

約数ペア:

[(1, 78442120), (2, 39221060), (4, 19610530), (5, 15688424), (8, 9805265), (10, 7844212), (20, 3922106), (40, 1961053), (53, 1480040), (106, 740020), (163, 481240), (212, 370010), (227, 345560), (265, 296008), (326, 240620), (424, 185005), (454, 172780), (530, 148004), (652, 120310), (815, 96248), (908, 86390), (1060, 74002), (1135, 69112), (1304, 60155), (1630, 48124), (1816, 43195), (2120, 37001), (2270, 34556), (3260, 24062), (4540, 17278), (6520, 12031), (8639, 9080)]