30171820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{3533}}^1$

素因数の和:3610

約数の個数: 48

約数和(自身を含む): 73620288

約数和(自身を除く): 43448468

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 1220, 1708, 2135, 3533, 4270, 7066, 8540, 14132, 17665, 24731, 35330, 49462, 70660, 98924, 123655, 215513, 247310, 431026, 494620, 862052, 1077565, 1508591, 2155130, 3017182, 4310260, 6034364, 7542955, 15085910, 30171820]

約数ペア:

[(1, 30171820), (2, 15085910), (4, 7542955), (5, 6034364), (7, 4310260), (10, 3017182), (14, 2155130), (20, 1508591), (28, 1077565), (35, 862052), (61, 494620), (70, 431026), (122, 247310), (140, 215513), (244, 123655), (305, 98924), (427, 70660), (610, 49462), (854, 35330), (1220, 24731), (1708, 17665), (2135, 14132), (3533, 8540), (4270, 7066)]