30857820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{73471}}^1$

素因数の和:73490

約数の個数: 48

約数和(自身を含む): 98746368

約数和(自身を除く): 67888548

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 73471, 146942, 220413, 293884, 367355, 440826, 514297, 734710, 881652, 1028594, 1102065, 1469420, 1542891, 2057188, 2204130, 2571485, 3085782, 4408260, 5142970, 6171564, 7714455, 10285940, 15428910, 30857820]

約数ペア:

[(1, 30857820), (2, 15428910), (3, 10285940), (4, 7714455), (5, 6171564), (6, 5142970), (7, 4408260), (10, 3085782), (12, 2571485), (14, 2204130), (15, 2057188), (20, 1542891), (21, 1469420), (28, 1102065), (30, 1028594), (35, 881652), (42, 734710), (60, 514297), (70, 440826), (84, 367355), (105, 293884), (140, 220413), (210, 146942), (420, 73471)]