19701840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{797}}^1$

素因数の和:916

約数の個数: 80

約数和(自身を含む): 61746048

約数和(自身を除く): 42044208

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 103, 120, 206, 240, 309, 412, 515, 618, 797, 824, 1030, 1236, 1545, 1594, 1648, 2060, 2391, 2472, 3090, 3188, 3985, 4120, 4782, 4944, 6180, 6376, 7970, 8240, 9564, 11955, 12360, 12752, 15940, 19128, 23910, 24720, 31880, 38256, 47820, 63760, 82091, 95640, 164182, 191280, 246273, 328364, 410455, 492546, 656728, 820910, 985092, 1231365, 1313456, 1641820, 1970184, 2462730, 3283640, 3940368, 4925460, 6567280, 9850920, 19701840]

約数ペア:

[(1, 19701840), (2, 9850920), (3, 6567280), (4, 4925460), (5, 3940368), (6, 3283640), (8, 2462730), (10, 1970184), (12, 1641820), (15, 1313456), (16, 1231365), (20, 985092), (24, 820910), (30, 656728), (40, 492546), (48, 410455), (60, 328364), (80, 246273), (103, 191280), (120, 164182), (206, 95640), (240, 82091), (309, 63760), (412, 47820), (515, 38256), (618, 31880), (797, 24720), (824, 23910), (1030, 19128), (1236, 15940), (1545, 12752), (1594, 12360), (1648, 11955), (2060, 9564), (2391, 8240), (2472, 7970), (3090, 6376), (3188, 6180), (3985, 4944), (4120, 4782)]