20870070

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{907}}^1$

素因数の和:989

約数の個数: 64

約数和(自身を含む): 54915840

約数和(自身を除く): 34045770

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 59, 65, 78, 118, 130, 177, 195, 295, 354, 390, 590, 767, 885, 907, 1534, 1770, 1814, 2301, 2721, 3835, 4535, 4602, 5442, 7670, 9070, 11505, 11791, 13605, 23010, 23582, 27210, 35373, 53513, 58955, 70746, 107026, 117910, 160539, 176865, 267565, 321078, 353730, 535130, 695669, 802695, 1391338, 1605390, 2087007, 3478345, 4174014, 6956690, 10435035, 20870070]

約数ペア:

[(1, 20870070), (2, 10435035), (3, 6956690), (5, 4174014), (6, 3478345), (10, 2087007), (13, 1605390), (15, 1391338), (26, 802695), (30, 695669), (39, 535130), (59, 353730), (65, 321078), (78, 267565), (118, 176865), (130, 160539), (177, 117910), (195, 107026), (295, 70746), (354, 58955), (390, 53513), (590, 35373), (767, 27210), (885, 23582), (907, 23010), (1534, 13605), (1770, 11791), (1814, 11505), (2301, 9070), (2721, 7670), (3835, 5442), (4535, 4602)]