199469240

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{27551}}^1$

素因数の和:27743

約数の個数: 32

約数和(自身を含む): 451301760

約数和(自身を除く): 251832520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 3620, 7240, 27551, 55102, 110204, 137755, 220408, 275510, 551020, 1102040, 4986731, 9973462, 19946924, 24933655, 39893848, 49867310, 99734620, 199469240]

約数ペア:

[(1, 199469240), (2, 99734620), (4, 49867310), (5, 39893848), (8, 24933655), (10, 19946924), (20, 9973462), (40, 4986731), (181, 1102040), (362, 551020), (724, 275510), (905, 220408), (1448, 137755), (1810, 110204), (3620, 55102), (7240, 27551)]