30857960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{577}}^1$

素因数の和:786

約数の個数: 64

約数和(自身を含む): 79902720

約数和(自身を除く): 49044760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 191, 280, 382, 577, 764, 955, 1154, 1337, 1528, 1910, 2308, 2674, 2885, 3820, 4039, 4616, 5348, 5770, 6685, 7640, 8078, 10696, 11540, 13370, 16156, 20195, 23080, 26740, 32312, 40390, 53480, 80780, 110207, 161560, 220414, 440828, 551035, 771449, 881656, 1102070, 1542898, 2204140, 3085796, 3857245, 4408280, 6171592, 7714490, 15428980, 30857960]

約数ペア:

[(1, 30857960), (2, 15428980), (4, 7714490), (5, 6171592), (7, 4408280), (8, 3857245), (10, 3085796), (14, 2204140), (20, 1542898), (28, 1102070), (35, 881656), (40, 771449), (56, 551035), (70, 440828), (140, 220414), (191, 161560), (280, 110207), (382, 80780), (577, 53480), (764, 40390), (955, 32312), (1154, 26740), (1337, 23080), (1528, 20195), (1910, 16156), (2308, 13370), (2674, 11540), (2885, 10696), (3820, 8078), (4039, 7640), (4616, 6685), (5348, 5770)]