30805880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{269}}^1\times {\mathrm{409}}^1$

素因数の和:696

約数の個数: 64

約数和(自身を含む): 79704000

約数和(自身を除く): 48898120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 269, 280, 409, 538, 818, 1076, 1345, 1636, 1883, 2045, 2152, 2690, 2863, 3272, 3766, 4090, 5380, 5726, 7532, 8180, 9415, 10760, 11452, 14315, 15064, 16360, 18830, 22904, 28630, 37660, 57260, 75320, 110021, 114520, 220042, 440084, 550105, 770147, 880168, 1100210, 1540294, 2200420, 3080588, 3850735, 4400840, 6161176, 7701470, 15402940, 30805880]

約数ペア:

[(1, 30805880), (2, 15402940), (4, 7701470), (5, 6161176), (7, 4400840), (8, 3850735), (10, 3080588), (14, 2200420), (20, 1540294), (28, 1100210), (35, 880168), (40, 770147), (56, 550105), (70, 440084), (140, 220042), (269, 114520), (280, 110021), (409, 75320), (538, 57260), (818, 37660), (1076, 28630), (1345, 22904), (1636, 18830), (1883, 16360), (2045, 15064), (2152, 14315), (2690, 11452), (2863, 10760), (3272, 9415), (3766, 8180), (4090, 7532), (5380, 5726)]