129971940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{309457}}^1$

素因数の和:309476

約数の個数: 48

約数和(自身を含む): 415911552

約数和(自身を除く): 285939612

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, 309457, 618914, 928371, 1237828, 1547285, 1856742, 2166199, 3094570, 3713484, 4332398, 4641855, 6189140, 6498597, 8664796, 9283710, 10830995, 12997194, 18567420, 21661990, 25994388, 32492985, 43323980, 64985970, 129971940]

約数ペア:

[(1, 129971940), (2, 64985970), (3, 43323980), (4, 32492985), (5, 25994388), (6, 21661990), (7, 18567420), (10, 12997194), (12, 10830995), (14, 9283710), (15, 8664796), (20, 6498597), (21, 6189140), (28, 4641855), (30, 4332398), (35, 3713484), (42, 3094570), (60, 2166199), (70, 1856742), (84, 1547285), (105, 1237828), (140, 928371), (210, 618914), (420, 309457)]