68788070

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^3\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:178

約数の個数: 64

約数和(自身を含む): 139829760

約数和(自身を除く): 71041690

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 101, 130, 155, 169, 202, 310, 338, 403, 505, 806, 845, 1010, 1313, 1690, 2015, 2197, 2626, 3131, 4030, 4394, 5239, 6262, 6565, 10478, 10985, 13130, 15655, 17069, 21970, 26195, 31310, 34138, 40703, 52390, 68107, 81406, 85345, 136214, 170690, 203515, 221897, 340535, 407030, 443794, 529139, 681070, 1058278, 1109485, 2218970, 2645695, 5291390, 6878807, 13757614, 34394035, 68788070]

約数ペア:

[(1, 68788070), (2, 34394035), (5, 13757614), (10, 6878807), (13, 5291390), (26, 2645695), (31, 2218970), (62, 1109485), (65, 1058278), (101, 681070), (130, 529139), (155, 443794), (169, 407030), (202, 340535), (310, 221897), (338, 203515), (403, 170690), (505, 136214), (806, 85345), (845, 81406), (1010, 68107), (1313, 52390), (1690, 40703), (2015, 34138), (2197, 31310), (2626, 26195), (3131, 21970), (4030, 17069), (4394, 15655), (5239, 13130), (6262, 10985), (6565, 10478)]