18718320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{3391}}^1$

素因数の和:3430

約数の個数: 80

約数和(自身を含む): 60567552

約数和(自身を除く): 41849232

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 115, 120, 138, 184, 230, 240, 276, 345, 368, 460, 552, 690, 920, 1104, 1380, 1840, 2760, 3391, 5520, 6782, 10173, 13564, 16955, 20346, 27128, 33910, 40692, 50865, 54256, 67820, 77993, 81384, 101730, 135640, 155986, 162768, 203460, 233979, 271280, 311972, 389965, 406920, 467958, 623944, 779930, 813840, 935916, 1169895, 1247888, 1559860, 1871832, 2339790, 3119720, 3743664, 4679580, 6239440, 9359160, 18718320]

約数ペア:

[(1, 18718320), (2, 9359160), (3, 6239440), (4, 4679580), (5, 3743664), (6, 3119720), (8, 2339790), (10, 1871832), (12, 1559860), (15, 1247888), (16, 1169895), (20, 935916), (23, 813840), (24, 779930), (30, 623944), (40, 467958), (46, 406920), (48, 389965), (60, 311972), (69, 271280), (80, 233979), (92, 203460), (115, 162768), (120, 155986), (138, 135640), (184, 101730), (230, 81384), (240, 77993), (276, 67820), (345, 54256), (368, 50865), (460, 40692), (552, 33910), (690, 27128), (920, 20346), (1104, 16955), (1380, 13564), (1840, 10173), (2760, 6782), (3391, 5520)]