20507270

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{907}}^1$

素因数の和:957

約数の個数: 64

約数和(自身を含む): 47070720

約数和(自身を除く): 26563450

約数列:

[1, 2, 5, 7, 10, 14, 17, 19, 34, 35, 38, 70, 85, 95, 119, 133, 170, 190, 238, 266, 323, 595, 646, 665, 907, 1190, 1330, 1615, 1814, 2261, 3230, 4522, 4535, 6349, 9070, 11305, 12698, 15419, 17233, 22610, 30838, 31745, 34466, 63490, 77095, 86165, 107933, 120631, 154190, 172330, 215866, 241262, 292961, 539665, 585922, 603155, 1079330, 1206310, 1464805, 2050727, 2929610, 4101454, 10253635, 20507270]

約数ペア:

[(1, 20507270), (2, 10253635), (5, 4101454), (7, 2929610), (10, 2050727), (14, 1464805), (17, 1206310), (19, 1079330), (34, 603155), (35, 585922), (38, 539665), (70, 292961), (85, 241262), (95, 215866), (119, 172330), (133, 154190), (170, 120631), (190, 107933), (238, 86165), (266, 77095), (323, 63490), (595, 34466), (646, 31745), (665, 30838), (907, 22610), (1190, 17233), (1330, 15419), (1615, 12698), (1814, 11305), (2261, 9070), (3230, 6349), (4522, 4535)]