1828508720

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{349}}^1\times {\mathrm{829}}^1$

素因数の和:1270

約数の個数: 80

約数和(自身を含む): 4322640000

約数和(自身を除く): 2494131280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 349, 395, 632, 698, 790, 829, 1264, 1396, 1580, 1658, 1745, 2792, 3160, 3316, 3490, 4145, 5584, 6320, 6632, 6980, 8290, 13264, 13960, 16580, 27571, 27920, 33160, 55142, 65491, 66320, 110284, 130982, 137855, 220568, 261964, 275710, 289321, 327455, 441136, 523928, 551420, 578642, 654910, 1047856, 1102840, 1157284, 1309820, 1446605, 2205680, 2314568, 2619640, 2893210, 4629136, 5239280, 5786420, 11572840, 22856359, 23145680, 45712718, 91425436, 114281795, 182850872, 228563590, 365701744, 457127180, 914254360, 1828508720]

約数ペア:

[(1, 1828508720), (2, 914254360), (4, 457127180), (5, 365701744), (8, 228563590), (10, 182850872), (16, 114281795), (20, 91425436), (40, 45712718), (79, 23145680), (80, 22856359), (158, 11572840), (316, 5786420), (349, 5239280), (395, 4629136), (632, 2893210), (698, 2619640), (790, 2314568), (829, 2205680), (1264, 1446605), (1396, 1309820), (1580, 1157284), (1658, 1102840), (1745, 1047856), (2792, 654910), (3160, 578642), (3316, 551420), (3490, 523928), (4145, 441136), (5584, 327455), (6320, 289321), (6632, 275710), (6980, 261964), (8290, 220568), (13264, 137855), (13960, 130982), (16580, 110284), (27571, 66320), (27920, 65491), (33160, 55142)]