81930140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{10477}}^1$

素因数の和:10526

約数の個数: 48

約数和(自身を含む): 190112832

約数和(自身を除く): 108182692

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 68, 85, 92, 115, 170, 230, 340, 391, 460, 782, 1564, 1955, 3910, 7820, 10477, 20954, 41908, 52385, 104770, 178109, 209540, 240971, 356218, 481942, 712436, 890545, 963884, 1204855, 1781090, 2409710, 3562180, 4096507, 4819420, 8193014, 16386028, 20482535, 40965070, 81930140]

約数ペア:

[(1, 81930140), (2, 40965070), (4, 20482535), (5, 16386028), (10, 8193014), (17, 4819420), (20, 4096507), (23, 3562180), (34, 2409710), (46, 1781090), (68, 1204855), (85, 963884), (92, 890545), (115, 712436), (170, 481942), (230, 356218), (340, 240971), (391, 209540), (460, 178109), (782, 104770), (1564, 52385), (1955, 41908), (3910, 20954), (7820, 10477)]