80465220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{40639}}^1$

素因数の和:40665

約数の個数: 72

約数和(自身を含む): 266273280

約数和(自身を除く): 185808060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 40639, 81278, 121917, 162556, 203195, 243834, 365751, 406390, 447029, 487668, 609585, 731502, 812780, 894058, 1219170, 1341087, 1463004, 1788116, 1828755, 2235145, 2438340, 2682174, 3657510, 4023261, 4470290, 5364348, 6705435, 7315020, 8046522, 8940580, 13410870, 16093044, 20116305, 26821740, 40232610, 80465220]

約数ペア:

[(1, 80465220), (2, 40232610), (3, 26821740), (4, 20116305), (5, 16093044), (6, 13410870), (9, 8940580), (10, 8046522), (11, 7315020), (12, 6705435), (15, 5364348), (18, 4470290), (20, 4023261), (22, 3657510), (30, 2682174), (33, 2438340), (36, 2235145), (44, 1828755), (45, 1788116), (55, 1463004), (60, 1341087), (66, 1219170), (90, 894058), (99, 812780), (110, 731502), (132, 609585), (165, 487668), (180, 447029), (198, 406390), (220, 365751), (330, 243834), (396, 203195), (495, 162556), (660, 121917), (990, 81278), (1980, 40639)]