320468720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{257}}^1$

素因数の和:403

約数の個数: 160

約数和(自身を含む): 886818240

約数和(自身を除く): 566349520

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 109, 110, 130, 143, 176, 208, 218, 220, 257, 260, 286, 436, 440, 514, 520, 545, 572, 715, 872, 880, 1028, 1040, 1090, 1144, 1199, 1285, 1417, 1430, 1744, 2056, 2180, 2288, 2398, 2570, 2827, 2834, 2860, 3341, 4112, 4360, 4796, 5140, 5654, 5668, 5720, 5995, 6682, 7085, 8720, 9592, 10280, 11308, 11336, 11440, 11990, 13364, 14135, 14170, 15587, 16705, 19184, 20560, 22616, 22672, 23980, 26728, 28013, 28270, 28340, 31174, 33410, 36751, 45232, 47960, 53456, 56026, 56540, 56680, 62348, 66820, 73502, 77935, 95920, 112052, 113080, 113360, 124696, 133640, 140065, 147004, 155870, 183755, 224104, 226160, 249392, 267280, 280130, 294008, 308143, 311740, 364169, 367510, 448208, 560260, 588016, 616286, 623480, 728338, 735020, 1120520, 1232572, 1246960, 1456676, 1470040, 1540715, 1820845, 2241040, 2465144, 2913352, 2940080, 3081430, 3641690, 4005859, 4930288, 5826704, 6162860, 7283380, 8011718, 12325720, 14566760, 16023436, 20029295, 24651440, 29133520, 32046872, 40058590, 64093744, 80117180, 160234360, 320468720]

約数ペア:

[(1, 320468720), (2, 160234360), (4, 80117180), (5, 64093744), (8, 40058590), (10, 32046872), (11, 29133520), (13, 24651440), (16, 20029295), (20, 16023436), (22, 14566760), (26, 12325720), (40, 8011718), (44, 7283380), (52, 6162860), (55, 5826704), (65, 4930288), (80, 4005859), (88, 3641690), (104, 3081430), (109, 2940080), (110, 2913352), (130, 2465144), (143, 2241040), (176, 1820845), (208, 1540715), (218, 1470040), (220, 1456676), (257, 1246960), (260, 1232572), (286, 1120520), (436, 735020), (440, 728338), (514, 623480), (520, 616286), (545, 588016), (572, 560260), (715, 448208), (872, 367510), (880, 364169), (1028, 311740), (1040, 308143), (1090, 294008), (1144, 280130), (1199, 267280), (1285, 249392), (1417, 226160), (1430, 224104), (1744, 183755), (2056, 155870), (2180, 147004), (2288, 140065), (2398, 133640), (2570, 124696), (2827, 113360), (2834, 113080), (2860, 112052), (3341, 95920), (4112, 77935), (4360, 73502), (4796, 66820), (5140, 62348), (5654, 56680), (5668, 56540), (5720, 56026), (5995, 53456), (6682, 47960), (7085, 45232), (8720, 36751), (9592, 33410), (10280, 31174), (11308, 28340), (11336, 28270), (11440, 28013), (11990, 26728), (13364, 23980), (14135, 22672), (14170, 22616), (15587, 20560), (16705, 19184)]