40902940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2579}}^1$

素因数の和:2662

約数の個数: 48

約数和(自身を含む): 94056480

約数和(自身を除く): 53153540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 244, 260, 305, 610, 793, 1220, 1586, 2579, 3172, 3965, 5158, 7930, 10316, 12895, 15860, 25790, 33527, 51580, 67054, 134108, 157319, 167635, 314638, 335270, 629276, 670540, 786595, 1573190, 2045147, 3146380, 4090294, 8180588, 10225735, 20451470, 40902940]

約数ペア:

[(1, 40902940), (2, 20451470), (4, 10225735), (5, 8180588), (10, 4090294), (13, 3146380), (20, 2045147), (26, 1573190), (52, 786595), (61, 670540), (65, 629276), (122, 335270), (130, 314638), (244, 167635), (260, 157319), (305, 134108), (610, 67054), (793, 51580), (1220, 33527), (1586, 25790), (2579, 15860), (3172, 12895), (3965, 10316), (5158, 7930)]