27690440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:342

約数の個数: 64

約数和(自身を含む): 65180160

約数和(自身を除く): 37489720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 137, 155, 163, 248, 274, 310, 326, 548, 620, 652, 685, 815, 1096, 1240, 1304, 1370, 1630, 2740, 3260, 4247, 5053, 5480, 6520, 8494, 10106, 16988, 20212, 21235, 22331, 25265, 33976, 40424, 42470, 44662, 50530, 84940, 89324, 101060, 111655, 169880, 178648, 202120, 223310, 446620, 692261, 893240, 1384522, 2769044, 3461305, 5538088, 6922610, 13845220, 27690440]

約数ペア:

[(1, 27690440), (2, 13845220), (4, 6922610), (5, 5538088), (8, 3461305), (10, 2769044), (20, 1384522), (31, 893240), (40, 692261), (62, 446620), (124, 223310), (137, 202120), (155, 178648), (163, 169880), (248, 111655), (274, 101060), (310, 89324), (326, 84940), (548, 50530), (620, 44662), (652, 42470), (685, 40424), (815, 33976), (1096, 25265), (1240, 22331), (1304, 21235), (1370, 20212), (1630, 16988), (2740, 10106), (3260, 8494), (4247, 6520), (5053, 5480)]