20567260

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{677}}^1$

素因数の和:731

約数の個数: 72

約数和(自身を含む): 51940224

約数和(自身を除く): 31372964

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 49, 62, 70, 98, 124, 140, 155, 196, 217, 245, 310, 434, 490, 620, 677, 868, 980, 1085, 1354, 1519, 2170, 2708, 3038, 3385, 4340, 4739, 6076, 6770, 7595, 9478, 13540, 15190, 18956, 20987, 23695, 30380, 33173, 41974, 47390, 66346, 83948, 94780, 104935, 132692, 146909, 165865, 209870, 293818, 331730, 419740, 587636, 663460, 734545, 1028363, 1469090, 2056726, 2938180, 4113452, 5141815, 10283630, 20567260]

約数ペア:

[(1, 20567260), (2, 10283630), (4, 5141815), (5, 4113452), (7, 2938180), (10, 2056726), (14, 1469090), (20, 1028363), (28, 734545), (31, 663460), (35, 587636), (49, 419740), (62, 331730), (70, 293818), (98, 209870), (124, 165865), (140, 146909), (155, 132692), (196, 104935), (217, 94780), (245, 83948), (310, 66346), (434, 47390), (490, 41974), (620, 33173), (677, 30380), (868, 23695), (980, 20987), (1085, 18956), (1354, 15190), (1519, 13540), (2170, 9478), (2708, 7595), (3038, 6770), (3385, 6076), (4340, 4739)]