42860620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{89}}^1\times {\mathrm{199}}^1$

素因数の和:319

約数の個数: 72

約数和(自身を含む): 100548000

約数和(自身を除く): 57687380

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 121, 178, 199, 220, 242, 356, 398, 445, 484, 605, 796, 890, 979, 995, 1210, 1780, 1958, 1990, 2189, 2420, 3916, 3980, 4378, 4895, 8756, 9790, 10769, 10945, 17711, 19580, 21538, 21890, 24079, 35422, 43076, 43780, 48158, 53845, 70844, 88555, 96316, 107690, 120395, 177110, 194821, 215380, 240790, 354220, 389642, 481580, 779284, 974105, 1948210, 2143031, 3896420, 4286062, 8572124, 10715155, 21430310, 42860620]

約数ペア:

[(1, 42860620), (2, 21430310), (4, 10715155), (5, 8572124), (10, 4286062), (11, 3896420), (20, 2143031), (22, 1948210), (44, 974105), (55, 779284), (89, 481580), (110, 389642), (121, 354220), (178, 240790), (199, 215380), (220, 194821), (242, 177110), (356, 120395), (398, 107690), (445, 96316), (484, 88555), (605, 70844), (796, 53845), (890, 48158), (979, 43780), (995, 43076), (1210, 35422), (1780, 24079), (1958, 21890), (1990, 21538), (2189, 19580), (2420, 17711), (3916, 10945), (3980, 10769), (4378, 9790), (4895, 8756)]