80692020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{7349}}^1$

素因数の和:7425

約数の個数: 72

約数和(自身を含む): 248812200

約数和(自身を除く): 168120180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1220, 1830, 2196, 2745, 3660, 5490, 7349, 10980, 14698, 22047, 29396, 36745, 44094, 66141, 73490, 88188, 110235, 132282, 146980, 220470, 264564, 330705, 440940, 448289, 661410, 896578, 1322820, 1344867, 1793156, 2241445, 2689734, 4034601, 4482890, 5379468, 6724335, 8069202, 8965780, 13448670, 16138404, 20173005, 26897340, 40346010, 80692020]

約数ペア:

[(1, 80692020), (2, 40346010), (3, 26897340), (4, 20173005), (5, 16138404), (6, 13448670), (9, 8965780), (10, 8069202), (12, 6724335), (15, 5379468), (18, 4482890), (20, 4034601), (30, 2689734), (36, 2241445), (45, 1793156), (60, 1344867), (61, 1322820), (90, 896578), (122, 661410), (180, 448289), (183, 440940), (244, 330705), (305, 264564), (366, 220470), (549, 146980), (610, 132282), (732, 110235), (915, 88188), (1098, 73490), (1220, 66141), (1830, 44094), (2196, 36745), (2745, 29396), (3660, 22047), (5490, 14698), (7349, 10980)]