81918368

素因数分解:

$2^5\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{251}}^1$

素因数の和:346

約数の個数: 96

約数和(自身を含む): 195084288

約数和(自身を除く): 113165920

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 47, 56, 62, 94, 112, 124, 188, 217, 224, 248, 251, 329, 376, 434, 496, 502, 658, 752, 868, 992, 1004, 1316, 1457, 1504, 1736, 1757, 2008, 2632, 2914, 3472, 3514, 4016, 5264, 5828, 6944, 7028, 7781, 8032, 10199, 10528, 11656, 11797, 14056, 15562, 20398, 23312, 23594, 28112, 31124, 40796, 46624, 47188, 54467, 56224, 62248, 81592, 82579, 94376, 108934, 124496, 163184, 165158, 188752, 217868, 248992, 326368, 330316, 365707, 377504, 435736, 660632, 731414, 871472, 1321264, 1462828, 1742944, 2559949, 2642528, 2925656, 5119898, 5851312, 10239796, 11702624, 20479592, 40959184, 81918368]

約数ペア:

[(1, 81918368), (2, 40959184), (4, 20479592), (7, 11702624), (8, 10239796), (14, 5851312), (16, 5119898), (28, 2925656), (31, 2642528), (32, 2559949), (47, 1742944), (56, 1462828), (62, 1321264), (94, 871472), (112, 731414), (124, 660632), (188, 435736), (217, 377504), (224, 365707), (248, 330316), (251, 326368), (329, 248992), (376, 217868), (434, 188752), (496, 165158), (502, 163184), (658, 124496), (752, 108934), (868, 94376), (992, 82579), (1004, 81592), (1316, 62248), (1457, 56224), (1504, 54467), (1736, 47188), (1757, 46624), (2008, 40796), (2632, 31124), (2914, 28112), (3472, 23594), (3514, 23312), (4016, 20398), (5264, 15562), (5828, 14056), (6944, 11797), (7028, 11656), (7781, 10528), (8032, 10199)]