19889220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{593}}^1$

素因数の和:661

約数の個数: 96

約数和(自身を含む): 61471872

約数和(自身を除く): 41582652

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 43, 52, 60, 65, 78, 86, 129, 130, 156, 172, 195, 215, 258, 260, 390, 430, 516, 559, 593, 645, 780, 860, 1118, 1186, 1290, 1677, 1779, 2236, 2372, 2580, 2795, 2965, 3354, 3558, 5590, 5930, 6708, 7116, 7709, 8385, 8895, 11180, 11860, 15418, 16770, 17790, 23127, 25499, 30836, 33540, 35580, 38545, 46254, 50998, 76497, 77090, 92508, 101996, 115635, 127495, 152994, 154180, 231270, 254990, 305988, 331487, 382485, 462540, 509980, 662974, 764970, 994461, 1325948, 1529940, 1657435, 1988922, 3314870, 3977844, 4972305, 6629740, 9944610, 19889220]

約数ペア:

[(1, 19889220), (2, 9944610), (3, 6629740), (4, 4972305), (5, 3977844), (6, 3314870), (10, 1988922), (12, 1657435), (13, 1529940), (15, 1325948), (20, 994461), (26, 764970), (30, 662974), (39, 509980), (43, 462540), (52, 382485), (60, 331487), (65, 305988), (78, 254990), (86, 231270), (129, 154180), (130, 152994), (156, 127495), (172, 115635), (195, 101996), (215, 92508), (258, 77090), (260, 76497), (390, 50998), (430, 46254), (516, 38545), (559, 35580), (593, 33540), (645, 30836), (780, 25499), (860, 23127), (1118, 17790), (1186, 16770), (1290, 15418), (1677, 11860), (1779, 11180), (2236, 8895), (2372, 8385), (2580, 7709), (2795, 7116), (2965, 6708), (3354, 5930), (3558, 5590)]