644570164

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{281}}^1$

素因数の和:449

約数の個数: 96

約数和(自身を含む): 1409909760

約数和(自身を除く): 765339596

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 61, 68, 79, 119, 122, 158, 238, 244, 281, 316, 427, 476, 553, 562, 854, 1037, 1106, 1124, 1343, 1708, 1967, 2074, 2212, 2686, 3934, 4148, 4777, 4819, 5372, 7259, 7868, 9401, 9554, 9638, 14518, 17141, 18802, 19108, 19276, 22199, 29036, 33439, 33733, 34282, 37604, 44398, 66878, 67466, 68564, 81923, 88796, 119987, 133756, 134932, 155393, 163846, 239974, 291397, 310786, 327692, 377383, 479948, 573461, 582794, 621572, 754766, 1146922, 1165588, 1354139, 1509532, 2039779, 2293844, 2641681, 2708278, 4079558, 5283362, 5416556, 8159116, 9478973, 10566724, 18957946, 23020363, 37915892, 46040726, 92081452, 161142541, 322285082, 644570164]

約数ペア:

[(1, 644570164), (2, 322285082), (4, 161142541), (7, 92081452), (14, 46040726), (17, 37915892), (28, 23020363), (34, 18957946), (61, 10566724), (68, 9478973), (79, 8159116), (119, 5416556), (122, 5283362), (158, 4079558), (238, 2708278), (244, 2641681), (281, 2293844), (316, 2039779), (427, 1509532), (476, 1354139), (553, 1165588), (562, 1146922), (854, 754766), (1037, 621572), (1106, 582794), (1124, 573461), (1343, 479948), (1708, 377383), (1967, 327692), (2074, 310786), (2212, 291397), (2686, 239974), (3934, 163846), (4148, 155393), (4777, 134932), (4819, 133756), (5372, 119987), (7259, 88796), (7868, 81923), (9401, 68564), (9554, 67466), (9638, 66878), (14518, 44398), (17141, 37604), (18802, 34282), (19108, 33733), (19276, 33439), (22199, 29036)]