420291222

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{223}}^1\times {\mathrm{331}}^1$

素因数の和:645

約数の個数: 64

約数和(自身を含む): 924542976

約数和(自身を除く): 504251754

約数列:

[1, 2, 3, 6, 13, 26, 39, 73, 78, 146, 219, 223, 331, 438, 446, 662, 669, 949, 993, 1338, 1898, 1986, 2847, 2899, 4303, 5694, 5798, 8606, 8697, 12909, 16279, 17394, 24163, 25818, 32558, 48326, 48837, 72489, 73813, 97674, 144978, 147626, 211627, 221439, 314119, 423254, 442878, 628238, 634881, 942357, 959569, 1269762, 1884714, 1919138, 2878707, 5388349, 5757414, 10776698, 16165047, 32330094, 70048537, 140097074, 210145611, 420291222]

約数ペア:

[(1, 420291222), (2, 210145611), (3, 140097074), (6, 70048537), (13, 32330094), (26, 16165047), (39, 10776698), (73, 5757414), (78, 5388349), (146, 2878707), (219, 1919138), (223, 1884714), (331, 1269762), (438, 959569), (446, 942357), (662, 634881), (669, 628238), (949, 442878), (993, 423254), (1338, 314119), (1898, 221439), (1986, 211627), (2847, 147626), (2899, 144978), (4303, 97674), (5694, 73813), (5798, 72489), (8606, 48837), (8697, 48326), (12909, 32558), (16279, 25818), (17394, 24163)]