128500020

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{7211}}^1$

素因数の和:7243

約数の個数: 120

約数和(自身を含む): 439816608

約数和(自身を除く): 311316588

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 44, 45, 54, 55, 60, 66, 81, 90, 99, 108, 110, 132, 135, 162, 165, 180, 198, 220, 270, 297, 324, 330, 396, 405, 495, 540, 594, 660, 810, 891, 990, 1188, 1485, 1620, 1782, 1980, 2970, 3564, 4455, 5940, 7211, 8910, 14422, 17820, 21633, 28844, 36055, 43266, 64899, 72110, 79321, 86532, 108165, 129798, 144220, 158642, 194697, 216330, 237963, 259596, 317284, 324495, 389394, 396605, 432660, 475926, 584091, 648990, 713889, 778788, 793210, 951852, 973485, 1168182, 1189815, 1297980, 1427778, 1586420, 1946970, 2141667, 2336364, 2379630, 2855556, 2920455, 3569445, 3893940, 4283334, 4759260, 5840910, 6425001, 7138890, 8566668, 10708335, 11681820, 12850002, 14277780, 21416670, 25700004, 32125005, 42833340, 64250010, 128500020]

約数ペア:

[(1, 128500020), (2, 64250010), (3, 42833340), (4, 32125005), (5, 25700004), (6, 21416670), (9, 14277780), (10, 12850002), (11, 11681820), (12, 10708335), (15, 8566668), (18, 7138890), (20, 6425001), (22, 5840910), (27, 4759260), (30, 4283334), (33, 3893940), (36, 3569445), (44, 2920455), (45, 2855556), (54, 2379630), (55, 2336364), (60, 2141667), (66, 1946970), (81, 1586420), (90, 1427778), (99, 1297980), (108, 1189815), (110, 1168182), (132, 973485), (135, 951852), (162, 793210), (165, 778788), (180, 713889), (198, 648990), (220, 584091), (270, 475926), (297, 432660), (324, 396605), (330, 389394), (396, 324495), (405, 317284), (495, 259596), (540, 237963), (594, 216330), (660, 194697), (810, 158642), (891, 144220), (990, 129798), (1188, 108165), (1485, 86532), (1620, 79321), (1782, 72110), (1980, 64899), (2970, 43266), (3564, 36055), (4455, 28844), (5940, 21633), (7211, 17820), (8910, 14422)]