19994910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{307}}^1$

素因数の和:497

約数の個数: 64

約数和(自身を含む): 52157952

約数和(自身を除く): 32163042

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 167, 195, 307, 334, 390, 501, 614, 835, 921, 1002, 1535, 1670, 1842, 2171, 2505, 3070, 3991, 4342, 4605, 5010, 6513, 7982, 9210, 10855, 11973, 13026, 19955, 21710, 23946, 32565, 39910, 51269, 59865, 65130, 102538, 119730, 153807, 256345, 307614, 512690, 666497, 769035, 1332994, 1538070, 1999491, 3332485, 3998982, 6664970, 9997455, 19994910]

約数ペア:

[(1, 19994910), (2, 9997455), (3, 6664970), (5, 3998982), (6, 3332485), (10, 1999491), (13, 1538070), (15, 1332994), (26, 769035), (30, 666497), (39, 512690), (65, 307614), (78, 256345), (130, 153807), (167, 119730), (195, 102538), (307, 65130), (334, 59865), (390, 51269), (501, 39910), (614, 32565), (835, 23946), (921, 21710), (1002, 19955), (1535, 13026), (1670, 11973), (1842, 10855), (2171, 9210), (2505, 7982), (3070, 6513), (3991, 5010), (4342, 4605)]