168821940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{401957}}^1$

素因数の和:401976

約数の個数: 48

約数和(自身を含む): 540231552

約数和(自身を除く): 371409612

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, 401957, 803914, 1205871, 1607828, 2009785, 2411742, 2813699, 4019570, 4823484, 5627398, 6029355, 8039140, 8441097, 11254796, 12058710, 14068495, 16882194, 24117420, 28136990, 33764388, 42205485, 56273980, 84410970, 168821940]

約数ペア:

[(1, 168821940), (2, 84410970), (3, 56273980), (4, 42205485), (5, 33764388), (6, 28136990), (7, 24117420), (10, 16882194), (12, 14068495), (14, 12058710), (15, 11254796), (20, 8441097), (21, 8039140), (28, 6029355), (30, 5627398), (35, 4823484), (42, 4019570), (60, 2813699), (70, 2411742), (84, 2009785), (105, 1607828), (140, 1205871), (210, 803914), (420, 401957)]