19678688

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{283}}^1$

素因数の和:387

約数の個数: 48

約数和(自身を含む): 40579056

約数和(自身を除く): 20900368

約数列:

[1, 2, 4, 8, 16, 32, 41, 53, 82, 106, 164, 212, 283, 328, 424, 566, 656, 848, 1132, 1312, 1696, 2173, 2264, 4346, 4528, 8692, 9056, 11603, 14999, 17384, 23206, 29998, 34768, 46412, 59996, 69536, 92824, 119992, 185648, 239984, 371296, 479968, 614959, 1229918, 2459836, 4919672, 9839344, 19678688]

約数ペア:

[(1, 19678688), (2, 9839344), (4, 4919672), (8, 2459836), (16, 1229918), (32, 614959), (41, 479968), (53, 371296), (82, 239984), (106, 185648), (164, 119992), (212, 92824), (283, 69536), (328, 59996), (424, 46412), (566, 34768), (656, 29998), (848, 23206), (1132, 17384), (1312, 14999), (1696, 11603), (2173, 9056), (2264, 8692), (4346, 4528)]