405380980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{51839}}^1$

素因数の和:51888

約数の個数: 48

約数和(自身を含む): 940584960

約数和(自身を除く): 535203980

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, 51839, 103678, 207356, 259195, 518390, 881263, 1036780, 1192297, 1762526, 2384594, 3525052, 4406315, 4769188, 5961485, 8812630, 11922970, 17625260, 20269049, 23845940, 40538098, 81076196, 101345245, 202690490, 405380980]

約数ペア:

[(1, 405380980), (2, 202690490), (4, 101345245), (5, 81076196), (10, 40538098), (17, 23845940), (20, 20269049), (23, 17625260), (34, 11922970), (46, 8812630), (68, 5961485), (85, 4769188), (92, 4406315), (115, 3525052), (170, 2384594), (230, 1762526), (340, 1192297), (391, 1036780), (460, 881263), (782, 518390), (1564, 259195), (1955, 207356), (3910, 103678), (7820, 51839)]