1818460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{419}}^1$

素因数の和:466

約数の個数: 48

約数和(自身を含む): 4515840

約数和(自身を除く): 2697380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 419, 434, 620, 838, 868, 1085, 1676, 2095, 2170, 2933, 4190, 4340, 5866, 8380, 11732, 12989, 14665, 25978, 29330, 51956, 58660, 64945, 90923, 129890, 181846, 259780, 363692, 454615, 909230, 1818460]

約数ペア:

[(1, 1818460), (2, 909230), (4, 454615), (5, 363692), (7, 259780), (10, 181846), (14, 129890), (20, 90923), (28, 64945), (31, 58660), (35, 51956), (62, 29330), (70, 25978), (124, 14665), (140, 12989), (155, 11732), (217, 8380), (310, 5866), (419, 4340), (434, 4190), (620, 2933), (838, 2170), (868, 2095), (1085, 1676)]