1563640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:152

約数の個数: 64

約数和(自身を含む): 3951360

約数和(自身を除く): 2387720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 97, 104, 124, 130, 155, 194, 248, 260, 310, 388, 403, 485, 520, 620, 776, 806, 970, 1240, 1261, 1612, 1940, 2015, 2522, 3007, 3224, 3880, 4030, 5044, 6014, 6305, 8060, 10088, 12028, 12610, 15035, 16120, 24056, 25220, 30070, 39091, 50440, 60140, 78182, 120280, 156364, 195455, 312728, 390910, 781820, 1563640]

約数ペア:

[(1, 1563640), (2, 781820), (4, 390910), (5, 312728), (8, 195455), (10, 156364), (13, 120280), (20, 78182), (26, 60140), (31, 50440), (40, 39091), (52, 30070), (62, 25220), (65, 24056), (97, 16120), (104, 15035), (124, 12610), (130, 12028), (155, 10088), (194, 8060), (248, 6305), (260, 6014), (310, 5044), (388, 4030), (403, 3880), (485, 3224), (520, 3007), (620, 2522), (776, 2015), (806, 1940), (970, 1612), (1240, 1261)]