About the Number

129728456

129728455 ← → 129728457

2進数表記:111101110110111111111001000

漢数字表記:一億二千九百七十二万八千四百五十六

素因数分解:

2 3 × 11 2 × 13 3 × 61 1

素因数の和:128
約数の個数: 96
約数和(自身を含む): 294382200
約数和(自身を除く): 164653744

約数列:
[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 61, 88, 104, 121, 122, 143, 169, 242, 244, 286, 338, 484, 488, 572, 671, 676, 793, 968, 1144, 1342, 1352, 1573, 1586, 1859, 2197, 2684, 3146, 3172, 3718, 4394, 5368, 6292, 6344, 7381, 7436, 8723, 8788, 10309, 12584, 14762, 14872, 17446, 17576, 20449, 20618, 24167, 29524, 34892, 40898, 41236, 48334, 59048, 69784, 81796, 82472, 95953, 96668, 113399, 134017, 163592, 191906, 193336, 226798, 265837, 268034, 383812, 453596, 531674, 536068, 767624, 907192, 1063348, 1072136, 1247389, 1474187, 2126696, 2494778, 2948374, 4989556, 5896748, 9979112, 11793496, 16216057, 32432114, 64864228, 129728456]

約数ペア:
[(1, 129728456), (2, 64864228), (4, 32432114), (8, 16216057), (11, 11793496), (13, 9979112), (22, 5896748), (26, 4989556), (44, 2948374), (52, 2494778), (61, 2126696), (88, 1474187), (104, 1247389), (121, 1072136), (122, 1063348), (143, 907192), (169, 767624), (242, 536068), (244, 531674), (286, 453596), (338, 383812), (484, 268034), (488, 265837), (572, 226798), (671, 193336), (676, 191906), (793, 163592), (968, 134017), (1144, 113399), (1342, 96668), (1352, 95953), (1573, 82472), (1586, 81796), (1859, 69784), (2197, 59048), (2684, 48334), (3146, 41236), (3172, 40898), (3718, 34892), (4394, 29524), (5368, 24167), (6292, 20618), (6344, 20449), (7381, 17576), (7436, 17446), (8723, 14872), (8788, 14762), (10309, 12584)]

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