78169860

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{661}}^1$

素因数の和:755

約数の個数: 120

約数和(自身を含む): 248957016

約数和(自身を除く): 170787156

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 73, 81, 90, 108, 135, 146, 162, 180, 219, 270, 292, 324, 365, 405, 438, 540, 657, 661, 730, 810, 876, 1095, 1314, 1322, 1460, 1620, 1971, 1983, 2190, 2628, 2644, 3285, 3305, 3942, 3966, 4380, 5913, 5949, 6570, 6610, 7884, 7932, 9855, 9915, 11826, 11898, 13140, 13220, 17847, 19710, 19830, 23652, 23796, 29565, 29745, 35694, 39420, 39660, 48253, 53541, 59130, 59490, 71388, 89235, 96506, 107082, 118260, 118980, 144759, 178470, 193012, 214164, 241265, 267705, 289518, 356940, 434277, 482530, 535410, 579036, 723795, 868554, 965060, 1070820, 1302831, 1447590, 1737108, 2171385, 2605662, 2895180, 3908493, 4342770, 5211324, 6514155, 7816986, 8685540, 13028310, 15633972, 19542465, 26056620, 39084930, 78169860]

約数ペア:

[(1, 78169860), (2, 39084930), (3, 26056620), (4, 19542465), (5, 15633972), (6, 13028310), (9, 8685540), (10, 7816986), (12, 6514155), (15, 5211324), (18, 4342770), (20, 3908493), (27, 2895180), (30, 2605662), (36, 2171385), (45, 1737108), (54, 1447590), (60, 1302831), (73, 1070820), (81, 965060), (90, 868554), (108, 723795), (135, 579036), (146, 535410), (162, 482530), (180, 434277), (219, 356940), (270, 289518), (292, 267705), (324, 241265), (365, 214164), (405, 193012), (438, 178470), (540, 144759), (657, 118980), (661, 118260), (730, 107082), (810, 96506), (876, 89235), (1095, 71388), (1314, 59490), (1322, 59130), (1460, 53541), (1620, 48253), (1971, 39660), (1983, 39420), (2190, 35694), (2628, 29745), (2644, 29565), (3285, 23796), (3305, 23652), (3942, 19830), (3966, 19710), (4380, 17847), (5913, 13220), (5949, 13140), (6570, 11898), (6610, 11826), (7884, 9915), (7932, 9855)]