20195936

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{563}}^1$

素因数の和:651

約数の個数: 48

約数和(自身を含む): 42638400

約数和(自身を除く): 22442464

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 59, 76, 118, 152, 236, 304, 472, 563, 608, 944, 1121, 1126, 1888, 2242, 2252, 4484, 4504, 8968, 9008, 10697, 17936, 18016, 21394, 33217, 35872, 42788, 66434, 85576, 132868, 171152, 265736, 342304, 531472, 631123, 1062944, 1262246, 2524492, 5048984, 10097968, 20195936]

約数ペア:

[(1, 20195936), (2, 10097968), (4, 5048984), (8, 2524492), (16, 1262246), (19, 1062944), (32, 631123), (38, 531472), (59, 342304), (76, 265736), (118, 171152), (152, 132868), (236, 85576), (304, 66434), (472, 42788), (563, 35872), (608, 33217), (944, 21394), (1121, 18016), (1126, 17936), (1888, 10697), (2242, 9008), (2252, 8968), (4484, 4504)]