28155025620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{393997}}^1$

素因数の和:394409

約数の個数: 72

約数和(自身を含む): 85618917384

約数和(自身を除く): 57463891764

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 397, 794, 1191, 1588, 1985, 2382, 3573, 3970, 4764, 5955, 7146, 7940, 11910, 14292, 17865, 23820, 35730, 71460, 393997, 787994, 1181991, 1575988, 1969985, 2363982, 3545973, 3939970, 4727964, 5909955, 7091946, 7879940, 11819910, 14183892, 17729865, 23639820, 35459730, 70919460, 156416809, 312833618, 469250427, 625667236, 782084045, 938500854, 1407751281, 1564168090, 1877001708, 2346252135, 2815502562, 3128336180, 4692504270, 5631005124, 7038756405, 9385008540, 14077512810, 28155025620]

約数ペア:

[(1, 28155025620), (2, 14077512810), (3, 9385008540), (4, 7038756405), (5, 5631005124), (6, 4692504270), (9, 3128336180), (10, 2815502562), (12, 2346252135), (15, 1877001708), (18, 1564168090), (20, 1407751281), (30, 938500854), (36, 782084045), (45, 625667236), (60, 469250427), (90, 312833618), (180, 156416809), (397, 70919460), (794, 35459730), (1191, 23639820), (1588, 17729865), (1985, 14183892), (2382, 11819910), (3573, 7879940), (3970, 7091946), (4764, 5909955), (5955, 4727964), (7146, 3939970), (7940, 3545973), (11910, 2363982), (14292, 1969985), (17865, 1575988), (23820, 1181991), (35730, 787994), (71460, 393997)]