248819980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{167}}^1$

素因数の和:319

約数の個数: 96

約数和(自身を含む): 568995840

約数和(自身を除く): 320175860

約数列:

[1, 2, 4, 5, 10, 20, 23, 41, 46, 79, 82, 92, 115, 158, 164, 167, 205, 230, 316, 334, 395, 410, 460, 668, 790, 820, 835, 943, 1580, 1670, 1817, 1886, 3239, 3340, 3634, 3772, 3841, 4715, 6478, 6847, 7268, 7682, 9085, 9430, 12956, 13193, 13694, 15364, 16195, 18170, 18860, 19205, 26386, 27388, 32390, 34235, 36340, 38410, 52772, 64780, 65965, 68470, 74497, 76820, 131930, 136940, 148994, 157481, 263860, 297988, 303439, 314962, 372485, 540913, 606878, 629924, 744970, 787405, 1081826, 1213756, 1489940, 1517195, 1574810, 2163652, 2704565, 3034390, 3149620, 5409130, 6068780, 10818260, 12440999, 24881998, 49763996, 62204995, 124409990, 248819980]

約数ペア:

[(1, 248819980), (2, 124409990), (4, 62204995), (5, 49763996), (10, 24881998), (20, 12440999), (23, 10818260), (41, 6068780), (46, 5409130), (79, 3149620), (82, 3034390), (92, 2704565), (115, 2163652), (158, 1574810), (164, 1517195), (167, 1489940), (205, 1213756), (230, 1081826), (316, 787405), (334, 744970), (395, 629924), (410, 606878), (460, 540913), (668, 372485), (790, 314962), (820, 303439), (835, 297988), (943, 263860), (1580, 157481), (1670, 148994), (1817, 136940), (1886, 131930), (3239, 76820), (3340, 74497), (3634, 68470), (3772, 65965), (3841, 64780), (4715, 52772), (6478, 38410), (6847, 36340), (7268, 34235), (7682, 32390), (9085, 27388), (9430, 26386), (12956, 19205), (13193, 18860), (13694, 18170), (15364, 16195)]