7218860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{157}}^1$

素因数の和:207

約数の個数: 72

約数和(自身を含む): 17651760

約数和(自身を除く): 10432900

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 121, 157, 190, 209, 220, 242, 314, 380, 418, 484, 605, 628, 785, 836, 1045, 1210, 1570, 1727, 2090, 2299, 2420, 2983, 3140, 3454, 4180, 4598, 5966, 6908, 8635, 9196, 11495, 11932, 14915, 17270, 18997, 22990, 29830, 32813, 34540, 37994, 45980, 59660, 65626, 75988, 94985, 131252, 164065, 189970, 328130, 360943, 379940, 656260, 721886, 1443772, 1804715, 3609430, 7218860]

約数ペア:

[(1, 7218860), (2, 3609430), (4, 1804715), (5, 1443772), (10, 721886), (11, 656260), (19, 379940), (20, 360943), (22, 328130), (38, 189970), (44, 164065), (55, 131252), (76, 94985), (95, 75988), (110, 65626), (121, 59660), (157, 45980), (190, 37994), (209, 34540), (220, 32813), (242, 29830), (314, 22990), (380, 18997), (418, 17270), (484, 14915), (605, 11932), (628, 11495), (785, 9196), (836, 8635), (1045, 6908), (1210, 5966), (1570, 4598), (1727, 4180), (2090, 3454), (2299, 3140), (2420, 2983)]