28680080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1$

素因数の和:169

約数の個数: 160

約数和(自身を含む): 82494720

約数和(自身を除く): 53814640

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 23, 26, 40, 44, 46, 52, 55, 65, 80, 88, 92, 104, 109, 110, 115, 130, 143, 176, 184, 208, 218, 220, 230, 253, 260, 286, 299, 368, 436, 440, 460, 506, 520, 545, 572, 598, 715, 872, 880, 920, 1012, 1040, 1090, 1144, 1196, 1199, 1265, 1417, 1430, 1495, 1744, 1840, 2024, 2180, 2288, 2392, 2398, 2507, 2530, 2834, 2860, 2990, 3289, 4048, 4360, 4784, 4796, 5014, 5060, 5668, 5720, 5980, 5995, 6578, 7085, 8720, 9592, 10028, 10120, 11336, 11440, 11960, 11990, 12535, 13156, 14170, 15587, 16445, 19184, 20056, 20240, 22672, 23920, 23980, 25070, 26312, 27577, 28340, 31174, 32591, 32890, 40112, 47960, 50140, 52624, 55154, 56680, 62348, 65182, 65780, 77935, 95920, 100280, 110308, 113360, 124696, 130364, 131560, 137885, 155870, 162955, 200560, 220616, 249392, 260728, 263120, 275770, 311740, 325910, 358501, 441232, 521456, 551540, 623480, 651820, 717002, 1103080, 1246960, 1303640, 1434004, 1792505, 2206160, 2607280, 2868008, 3585010, 5736016, 7170020, 14340040, 28680080]

約数ペア:

[(1, 28680080), (2, 14340040), (4, 7170020), (5, 5736016), (8, 3585010), (10, 2868008), (11, 2607280), (13, 2206160), (16, 1792505), (20, 1434004), (22, 1303640), (23, 1246960), (26, 1103080), (40, 717002), (44, 651820), (46, 623480), (52, 551540), (55, 521456), (65, 441232), (80, 358501), (88, 325910), (92, 311740), (104, 275770), (109, 263120), (110, 260728), (115, 249392), (130, 220616), (143, 200560), (176, 162955), (184, 155870), (208, 137885), (218, 131560), (220, 130364), (230, 124696), (253, 113360), (260, 110308), (286, 100280), (299, 95920), (368, 77935), (436, 65780), (440, 65182), (460, 62348), (506, 56680), (520, 55154), (545, 52624), (572, 50140), (598, 47960), (715, 40112), (872, 32890), (880, 32591), (920, 31174), (1012, 28340), (1040, 27577), (1090, 26312), (1144, 25070), (1196, 23980), (1199, 23920), (1265, 22672), (1417, 20240), (1430, 20056), (1495, 19184), (1744, 16445), (1840, 15587), (2024, 14170), (2180, 13156), (2288, 12535), (2392, 11990), (2398, 11960), (2507, 11440), (2530, 11336), (2834, 10120), (2860, 10028), (2990, 9592), (3289, 8720), (4048, 7085), (4360, 6578), (4784, 5995), (4796, 5980), (5014, 5720), (5060, 5668)]