280436416

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:270

約数の個数: 112

約数和(自身を含む): 630862848

約数和(自身を除く): 350426432

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 83, 104, 124, 131, 166, 208, 248, 262, 332, 403, 416, 496, 524, 664, 806, 832, 992, 1048, 1079, 1328, 1612, 1703, 1984, 2096, 2158, 2573, 2656, 3224, 3406, 4061, 4192, 4316, 5146, 5312, 6448, 6812, 8122, 8384, 8632, 10292, 10873, 12896, 13624, 16244, 17264, 20584, 21746, 25792, 27248, 32488, 33449, 34528, 41168, 43492, 52793, 54496, 64976, 66898, 69056, 82336, 86984, 105586, 108992, 129952, 133796, 141349, 164672, 173968, 211172, 259904, 267592, 282698, 337063, 347936, 422344, 535184, 565396, 674126, 695872, 844688, 1070368, 1130792, 1348252, 1689376, 2140736, 2261584, 2696504, 3378752, 4381819, 4523168, 5393008, 8763638, 9046336, 10786016, 17527276, 21572032, 35054552, 70109104, 140218208, 280436416]

約数ペア:

[(1, 280436416), (2, 140218208), (4, 70109104), (8, 35054552), (13, 21572032), (16, 17527276), (26, 10786016), (31, 9046336), (32, 8763638), (52, 5393008), (62, 4523168), (64, 4381819), (83, 3378752), (104, 2696504), (124, 2261584), (131, 2140736), (166, 1689376), (208, 1348252), (248, 1130792), (262, 1070368), (332, 844688), (403, 695872), (416, 674126), (496, 565396), (524, 535184), (664, 422344), (806, 347936), (832, 337063), (992, 282698), (1048, 267592), (1079, 259904), (1328, 211172), (1612, 173968), (1703, 164672), (1984, 141349), (2096, 133796), (2158, 129952), (2573, 108992), (2656, 105586), (3224, 86984), (3406, 82336), (4061, 69056), (4192, 66898), (4316, 64976), (5146, 54496), (5312, 52793), (6448, 43492), (6812, 41168), (8122, 34528), (8384, 33449), (8632, 32488), (10292, 27248), (10873, 25792), (12896, 21746), (13624, 20584), (16244, 17264)]