20219970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{967}}^1$

素因数の和:1035

約数の個数: 64

約数和(自身を含む): 52690176

約数和(自身を除く): 32470206

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 41, 51, 82, 85, 102, 123, 170, 205, 246, 255, 410, 510, 615, 697, 967, 1230, 1394, 1934, 2091, 2901, 3485, 4182, 4835, 5802, 6970, 9670, 10455, 14505, 16439, 20910, 29010, 32878, 39647, 49317, 79294, 82195, 98634, 118941, 164390, 198235, 237882, 246585, 396470, 493170, 594705, 673999, 1189410, 1347998, 2021997, 3369995, 4043994, 6739990, 10109985, 20219970]

約数ペア:

[(1, 20219970), (2, 10109985), (3, 6739990), (5, 4043994), (6, 3369995), (10, 2021997), (15, 1347998), (17, 1189410), (30, 673999), (34, 594705), (41, 493170), (51, 396470), (82, 246585), (85, 237882), (102, 198235), (123, 164390), (170, 118941), (205, 98634), (246, 82195), (255, 79294), (410, 49317), (510, 39647), (615, 32878), (697, 29010), (967, 20910), (1230, 16439), (1394, 14505), (1934, 10455), (2091, 9670), (2901, 6970), (3485, 5802), (4182, 4835)]