2738540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{631}}^1$

素因数の和:678

約数の個数: 48

約数和(自身を含む): 6795264

約数和(自身を除く): 4056724

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 631, 868, 1085, 1262, 2170, 2524, 3155, 4340, 4417, 6310, 8834, 12620, 17668, 19561, 22085, 39122, 44170, 78244, 88340, 97805, 136927, 195610, 273854, 391220, 547708, 684635, 1369270, 2738540]

約数ペア:

[(1, 2738540), (2, 1369270), (4, 684635), (5, 547708), (7, 391220), (10, 273854), (14, 195610), (20, 136927), (28, 97805), (31, 88340), (35, 78244), (62, 44170), (70, 39122), (124, 22085), (140, 19561), (155, 17668), (217, 12620), (310, 8834), (434, 6310), (620, 4417), (631, 4340), (868, 3155), (1085, 2524), (1262, 2170)]