261618448

素因数分解:

$2^4\times 7^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1$

素因数の和:254

約数の個数: 160

約数和(自身を含む): 673568000

約数和(自身を除く): 411949552

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 19, 26, 28, 38, 49, 52, 56, 76, 91, 98, 104, 112, 133, 152, 182, 193, 196, 208, 247, 266, 304, 343, 364, 386, 392, 494, 532, 637, 686, 728, 772, 784, 931, 988, 1064, 1274, 1351, 1372, 1456, 1544, 1729, 1862, 1976, 2128, 2509, 2548, 2702, 2744, 3088, 3458, 3667, 3724, 3952, 4459, 5018, 5096, 5404, 5488, 6517, 6916, 7334, 7448, 8918, 9457, 10036, 10192, 10808, 12103, 13034, 13832, 14668, 14896, 17563, 17836, 18914, 20072, 21616, 24206, 25669, 26068, 27664, 29336, 35126, 35672, 37828, 40144, 47671, 48412, 51338, 52136, 58672, 66199, 70252, 71344, 75656, 84721, 95342, 96824, 102676, 104272, 122941, 132398, 140504, 151312, 169442, 179683, 190684, 193648, 205352, 245882, 264796, 281008, 333697, 338884, 359366, 381368, 410704, 491764, 529592, 667394, 677768, 718732, 762736, 860587, 983528, 1059184, 1257781, 1334788, 1355536, 1437464, 1721174, 1967056, 2335879, 2515562, 2669576, 2874928, 3442348, 4671758, 5031124, 5339152, 6884696, 9343516, 10062248, 13769392, 16351153, 18687032, 20124496, 32702306, 37374064, 65404612, 130809224, 261618448]

約数ペア:

[(1, 261618448), (2, 130809224), (4, 65404612), (7, 37374064), (8, 32702306), (13, 20124496), (14, 18687032), (16, 16351153), (19, 13769392), (26, 10062248), (28, 9343516), (38, 6884696), (49, 5339152), (52, 5031124), (56, 4671758), (76, 3442348), (91, 2874928), (98, 2669576), (104, 2515562), (112, 2335879), (133, 1967056), (152, 1721174), (182, 1437464), (193, 1355536), (196, 1334788), (208, 1257781), (247, 1059184), (266, 983528), (304, 860587), (343, 762736), (364, 718732), (386, 677768), (392, 667394), (494, 529592), (532, 491764), (637, 410704), (686, 381368), (728, 359366), (772, 338884), (784, 333697), (931, 281008), (988, 264796), (1064, 245882), (1274, 205352), (1351, 193648), (1372, 190684), (1456, 179683), (1544, 169442), (1729, 151312), (1862, 140504), (1976, 132398), (2128, 122941), (2509, 104272), (2548, 102676), (2702, 96824), (2744, 95342), (3088, 84721), (3458, 75656), (3667, 71344), (3724, 70252), (3952, 66199), (4459, 58672), (5018, 52136), (5096, 51338), (5404, 48412), (5488, 47671), (6517, 40144), (6916, 37828), (7334, 35672), (7448, 35126), (8918, 29336), (9457, 27664), (10036, 26068), (10192, 25669), (10808, 24206), (12103, 21616), (13034, 20072), (13832, 18914), (14668, 17836), (14896, 17563)]