20653560

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{557}}^1$

素因数の和:677

約数の個数: 96

約数和(自身を含む): 67897440

約数和(自身を除く): 47243880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 103, 120, 180, 206, 309, 360, 412, 515, 557, 618, 824, 927, 1030, 1114, 1236, 1545, 1671, 1854, 2060, 2228, 2472, 2785, 3090, 3342, 3708, 4120, 4456, 4635, 5013, 5570, 6180, 6684, 7416, 8355, 9270, 10026, 11140, 12360, 13368, 16710, 18540, 20052, 22280, 25065, 33420, 37080, 40104, 50130, 57371, 66840, 100260, 114742, 172113, 200520, 229484, 286855, 344226, 458968, 516339, 573710, 688452, 860565, 1032678, 1147420, 1376904, 1721130, 2065356, 2294840, 2581695, 3442260, 4130712, 5163390, 6884520, 10326780, 20653560]

約数ペア:

[(1, 20653560), (2, 10326780), (3, 6884520), (4, 5163390), (5, 4130712), (6, 3442260), (8, 2581695), (9, 2294840), (10, 2065356), (12, 1721130), (15, 1376904), (18, 1147420), (20, 1032678), (24, 860565), (30, 688452), (36, 573710), (40, 516339), (45, 458968), (60, 344226), (72, 286855), (90, 229484), (103, 200520), (120, 172113), (180, 114742), (206, 100260), (309, 66840), (360, 57371), (412, 50130), (515, 40104), (557, 37080), (618, 33420), (824, 25065), (927, 22280), (1030, 20052), (1114, 18540), (1236, 16710), (1545, 13368), (1671, 12360), (1854, 11140), (2060, 10026), (2228, 9270), (2472, 8355), (2785, 7416), (3090, 6684), (3342, 6180), (3708, 5570), (4120, 5013), (4456, 4635)]