206548280

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1\times {\mathrm{647}}^1$

素因数の和:1028

約数の個数: 64

約数和(自身を含む): 487088640

約数和(自身を除く): 280540360

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 347, 460, 647, 694, 920, 1294, 1388, 1735, 2588, 2776, 3235, 3470, 5176, 6470, 6940, 7981, 12940, 13880, 14881, 15962, 25880, 29762, 31924, 39905, 59524, 63848, 74405, 79810, 119048, 148810, 159620, 224509, 297620, 319240, 449018, 595240, 898036, 1122545, 1796072, 2245090, 4490180, 5163707, 8980360, 10327414, 20654828, 25818535, 41309656, 51637070, 103274140, 206548280]

約数ペア:

[(1, 206548280), (2, 103274140), (4, 51637070), (5, 41309656), (8, 25818535), (10, 20654828), (20, 10327414), (23, 8980360), (40, 5163707), (46, 4490180), (92, 2245090), (115, 1796072), (184, 1122545), (230, 898036), (347, 595240), (460, 449018), (647, 319240), (694, 297620), (920, 224509), (1294, 159620), (1388, 148810), (1735, 119048), (2588, 79810), (2776, 74405), (3235, 63848), (3470, 59524), (5176, 39905), (6470, 31924), (6940, 29762), (7981, 25880), (12940, 15962), (13880, 14881)]