205249840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{150919}}^1$

素因数の和:150949

約数の個数: 40

約数和(自身を含む): 505280160

約数和(自身を除く): 300030320

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 150919, 301838, 603676, 754595, 1207352, 1509190, 2414704, 2565623, 3018380, 5131246, 6036760, 10262492, 12073520, 12828115, 20524984, 25656230, 41049968, 51312460, 102624920, 205249840]

約数ペア:

[(1, 205249840), (2, 102624920), (4, 51312460), (5, 41049968), (8, 25656230), (10, 20524984), (16, 12828115), (17, 12073520), (20, 10262492), (34, 6036760), (40, 5131246), (68, 3018380), (80, 2565623), (85, 2414704), (136, 1509190), (170, 1207352), (272, 754595), (340, 603676), (680, 301838), (1360, 150919)]