30055720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{557}}^1$

素因数の和:658

約数の個数: 64

約数和(自身を含む): 72316800

約数和(自身を除く): 42261080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 71, 76, 95, 142, 152, 190, 284, 355, 380, 557, 568, 710, 760, 1114, 1349, 1420, 2228, 2698, 2785, 2840, 4456, 5396, 5570, 6745, 10583, 10792, 11140, 13490, 21166, 22280, 26980, 39547, 42332, 52915, 53960, 79094, 84664, 105830, 158188, 197735, 211660, 316376, 395470, 423320, 751393, 790940, 1502786, 1581880, 3005572, 3756965, 6011144, 7513930, 15027860, 30055720]

約数ペア:

[(1, 30055720), (2, 15027860), (4, 7513930), (5, 6011144), (8, 3756965), (10, 3005572), (19, 1581880), (20, 1502786), (38, 790940), (40, 751393), (71, 423320), (76, 395470), (95, 316376), (142, 211660), (152, 197735), (190, 158188), (284, 105830), (355, 84664), (380, 79094), (557, 53960), (568, 52915), (710, 42332), (760, 39547), (1114, 26980), (1349, 22280), (1420, 21166), (2228, 13490), (2698, 11140), (2785, 10792), (2840, 10583), (4456, 6745), (5396, 5570)]