405470830

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{20719}}^1$

素因数の和:20848

約数の個数: 32

約数和(自身を含む): 775756800

約数和(自身を除く): 370285970

約数列:

[1, 2, 5, 10, 19, 38, 95, 103, 190, 206, 515, 1030, 1957, 3914, 9785, 19570, 20719, 41438, 103595, 207190, 393661, 787322, 1968305, 2134057, 3936610, 4268114, 10670285, 21340570, 40547083, 81094166, 202735415, 405470830]

約数ペア:

[(1, 405470830), (2, 202735415), (5, 81094166), (10, 40547083), (19, 21340570), (38, 10670285), (95, 4268114), (103, 3936610), (190, 2134057), (206, 1968305), (515, 787322), (1030, 393661), (1957, 207190), (3914, 103595), (9785, 41438), (19570, 20719)]