9989940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{167}}^1\times {\mathrm{997}}^1$

素因数の和:1176

約数の個数: 48

約数和(自身を含む): 28167552

約数和(自身を除く): 18177612

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 167, 334, 501, 668, 835, 997, 1002, 1670, 1994, 2004, 2505, 2991, 3340, 3988, 4985, 5010, 5982, 9970, 10020, 11964, 14955, 19940, 29910, 59820, 166499, 332998, 499497, 665996, 832495, 998994, 1664990, 1997988, 2497485, 3329980, 4994970, 9989940]

約数ペア:

[(1, 9989940), (2, 4994970), (3, 3329980), (4, 2497485), (5, 1997988), (6, 1664990), (10, 998994), (12, 832495), (15, 665996), (20, 499497), (30, 332998), (60, 166499), (167, 59820), (334, 29910), (501, 19940), (668, 14955), (835, 11964), (997, 10020), (1002, 9970), (1670, 5982), (1994, 5010), (2004, 4985), (2505, 3988), (2991, 3340)]