13845220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 30417408

約数和(自身を除く): 16572188

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 137, 155, 163, 274, 310, 326, 548, 620, 652, 685, 815, 1370, 1630, 2740, 3260, 4247, 5053, 8494, 10106, 16988, 20212, 21235, 22331, 25265, 42470, 44662, 50530, 84940, 89324, 101060, 111655, 223310, 446620, 692261, 1384522, 2769044, 3461305, 6922610, 13845220]

約数ペア:

[(1, 13845220), (2, 6922610), (4, 3461305), (5, 2769044), (10, 1384522), (20, 692261), (31, 446620), (62, 223310), (124, 111655), (137, 101060), (155, 89324), (163, 84940), (274, 50530), (310, 44662), (326, 42470), (548, 25265), (620, 22331), (652, 21235), (685, 20212), (815, 16988), (1370, 10106), (1630, 8494), (2740, 5053), (3260, 4247)]