20201409904

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1\times {\mathrm{349}}^1$

素因数の和:639

約数の個数: 160

約数和(自身を含む): 44797132800

約数和(自身を除く): 24595722896

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 47, 52, 62, 94, 104, 124, 188, 191, 208, 248, 349, 376, 382, 403, 496, 611, 698, 752, 764, 806, 1222, 1396, 1457, 1528, 1612, 2444, 2483, 2792, 2914, 3056, 3224, 4537, 4888, 4966, 5584, 5828, 5921, 6448, 8977, 9074, 9776, 9932, 10819, 11656, 11842, 16403, 17954, 18148, 18941, 19864, 21638, 23312, 23684, 32806, 35908, 36296, 37882, 39728, 43276, 47368, 65612, 66659, 71816, 72592, 75764, 76973, 86552, 94736, 116701, 131224, 133318, 140647, 143632, 151528, 153946, 173104, 213239, 233402, 262448, 266636, 278287, 281294, 303056, 307892, 426478, 466804, 508493, 533272, 556574, 562588, 615784, 852956, 866567, 933608, 1016986, 1066544, 1113148, 1125176, 1231568, 1705912, 1733134, 1867216, 2033972, 2066429, 2226296, 2250352, 3132973, 3411824, 3466268, 3617731, 4067944, 4132858, 4452592, 6265946, 6610409, 6932536, 7235462, 8135888, 8265716, 12531892, 13220818, 13865072, 14470924, 16531432, 25063784, 26441636, 26863577, 28941848, 33062864, 40728649, 50127568, 52883272, 53727154, 57883696, 81457298, 97122163, 105766544, 107454308, 162914596, 194244326, 214908616, 325829192, 388488652, 429817232, 651658384, 776977304, 1262588119, 1553954608, 2525176238, 5050352476, 10100704952, 20201409904]

約数ペア:

[(1, 20201409904), (2, 10100704952), (4, 5050352476), (8, 2525176238), (13, 1553954608), (16, 1262588119), (26, 776977304), (31, 651658384), (47, 429817232), (52, 388488652), (62, 325829192), (94, 214908616), (104, 194244326), (124, 162914596), (188, 107454308), (191, 105766544), (208, 97122163), (248, 81457298), (349, 57883696), (376, 53727154), (382, 52883272), (403, 50127568), (496, 40728649), (611, 33062864), (698, 28941848), (752, 26863577), (764, 26441636), (806, 25063784), (1222, 16531432), (1396, 14470924), (1457, 13865072), (1528, 13220818), (1612, 12531892), (2444, 8265716), (2483, 8135888), (2792, 7235462), (2914, 6932536), (3056, 6610409), (3224, 6265946), (4537, 4452592), (4888, 4132858), (4966, 4067944), (5584, 3617731), (5828, 3466268), (5921, 3411824), (6448, 3132973), (8977, 2250352), (9074, 2226296), (9776, 2066429), (9932, 2033972), (10819, 1867216), (11656, 1733134), (11842, 1705912), (16403, 1231568), (17954, 1125176), (18148, 1113148), (18941, 1066544), (19864, 1016986), (21638, 933608), (23312, 866567), (23684, 852956), (32806, 615784), (35908, 562588), (36296, 556574), (37882, 533272), (39728, 508493), (43276, 466804), (47368, 426478), (65612, 307892), (66659, 303056), (71816, 281294), (72592, 278287), (75764, 266636), (76973, 262448), (86552, 233402), (94736, 213239), (116701, 173104), (131224, 153946), (133318, 151528), (140647, 143632)]