656139780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{13451}}^1$

素因数の和:13737

約数の個数: 72

約数和(自身を含む): 1997783424

約数和(自身を除く): 1341643644

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 271, 542, 813, 1084, 1355, 1626, 2439, 2710, 3252, 4065, 4878, 5420, 8130, 9756, 12195, 13451, 16260, 24390, 26902, 40353, 48780, 53804, 67255, 80706, 121059, 134510, 161412, 201765, 242118, 269020, 403530, 484236, 605295, 807060, 1210590, 2421180, 3645221, 7290442, 10935663, 14580884, 18226105, 21871326, 32806989, 36452210, 43742652, 54678315, 65613978, 72904420, 109356630, 131227956, 164034945, 218713260, 328069890, 656139780]

約数ペア:

[(1, 656139780), (2, 328069890), (3, 218713260), (4, 164034945), (5, 131227956), (6, 109356630), (9, 72904420), (10, 65613978), (12, 54678315), (15, 43742652), (18, 36452210), (20, 32806989), (30, 21871326), (36, 18226105), (45, 14580884), (60, 10935663), (90, 7290442), (180, 3645221), (271, 2421180), (542, 1210590), (813, 807060), (1084, 605295), (1355, 484236), (1626, 403530), (2439, 269020), (2710, 242118), (3252, 201765), (4065, 161412), (4878, 134510), (5420, 121059), (8130, 80706), (9756, 67255), (12195, 53804), (13451, 48780), (16260, 40353), (24390, 26902)]