217742940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{73}}^2\times {\mathrm{227}}^1$

素因数の和:388

約数の個数: 108

約数和(自身を含む): 672608664

約数和(自身を除く): 454865724

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 73, 90, 146, 180, 219, 227, 292, 365, 438, 454, 657, 681, 730, 876, 908, 1095, 1135, 1314, 1362, 1460, 2043, 2190, 2270, 2628, 2724, 3285, 3405, 4086, 4380, 4540, 5329, 6570, 6810, 8172, 10215, 10658, 13140, 13620, 15987, 16571, 20430, 21316, 26645, 31974, 33142, 40860, 47961, 49713, 53290, 63948, 66284, 79935, 82855, 95922, 99426, 106580, 149139, 159870, 165710, 191844, 198852, 239805, 248565, 298278, 319740, 331420, 479610, 497130, 596556, 745695, 959220, 994260, 1209683, 1491390, 2419366, 2982780, 3629049, 4838732, 6048415, 7258098, 10887147, 12096830, 14516196, 18145245, 21774294, 24193660, 36290490, 43548588, 54435735, 72580980, 108871470, 217742940]

約数ペア:

[(1, 217742940), (2, 108871470), (3, 72580980), (4, 54435735), (5, 43548588), (6, 36290490), (9, 24193660), (10, 21774294), (12, 18145245), (15, 14516196), (18, 12096830), (20, 10887147), (30, 7258098), (36, 6048415), (45, 4838732), (60, 3629049), (73, 2982780), (90, 2419366), (146, 1491390), (180, 1209683), (219, 994260), (227, 959220), (292, 745695), (365, 596556), (438, 497130), (454, 479610), (657, 331420), (681, 319740), (730, 298278), (876, 248565), (908, 239805), (1095, 198852), (1135, 191844), (1314, 165710), (1362, 159870), (1460, 149139), (2043, 106580), (2190, 99426), (2270, 95922), (2628, 82855), (2724, 79935), (3285, 66284), (3405, 63948), (4086, 53290), (4380, 49713), (4540, 47961), (5329, 40860), (6570, 33142), (6810, 31974), (8172, 26645), (10215, 21316), (10658, 20430), (13140, 16571), (13620, 15987)]