21991250

素因数分解:

$2^1\times 5^4\times {\mathrm{73}}^1\times {\mathrm{241}}^1$

素因数の和:336

約数の個数: 40

約数和(自身を含む): 41958444

約数和(自身を除く): 19967194

約数列:

[1, 2, 5, 10, 25, 50, 73, 125, 146, 241, 250, 365, 482, 625, 730, 1205, 1250, 1825, 2410, 3650, 6025, 9125, 12050, 17593, 18250, 30125, 35186, 45625, 60250, 87965, 91250, 150625, 175930, 301250, 439825, 879650, 2199125, 4398250, 10995625, 21991250]

約数ペア:

[(1, 21991250), (2, 10995625), (5, 4398250), (10, 2199125), (25, 879650), (50, 439825), (73, 301250), (125, 175930), (146, 150625), (241, 91250), (250, 87965), (365, 60250), (482, 45625), (625, 35186), (730, 30125), (1205, 18250), (1250, 17593), (1825, 12050), (2410, 9125), (3650, 6025)]