388738975560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1997}}^1\times {\mathrm{124783}}^1$

素因数の和:126807

約数の個数: 128

約数和(自身を含む): 1256564897280

約数和(自身を除く): 867825921720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 1997, 3994, 5991, 7988, 9985, 11982, 15976, 19970, 23964, 25961, 29955, 39940, 47928, 51922, 59910, 77883, 79880, 103844, 119820, 124783, 129805, 155766, 207688, 239640, 249566, 259610, 311532, 374349, 389415, 499132, 519220, 623064, 623915, 748698, 778830, 998264, 1038440, 1247830, 1497396, 1557660, 1622179, 1871745, 2495660, 2994792, 3115320, 3244358, 3743490, 4866537, 4991320, 6488716, 7486980, 8110895, 9733074, 12977432, 14973960, 16221790, 19466148, 24332685, 32443580, 38932296, 48665370, 64887160, 97330740, 194661480, 249191651, 498383302, 747574953, 996766604, 1245958255, 1495149906, 1993533208, 2491916510, 2990299812, 3239491463, 3737874765, 4983833020, 5980599624, 6478982926, 7475749530, 9718474389, 9967666040, 12957965852, 14951499060, 16197457315, 19436948778, 25915931704, 29902998120, 32394914630, 38873897556, 48592371945, 64789829260, 77747795112, 97184743890, 129579658520, 194369487780, 388738975560]

約数ペア:

[(1, 388738975560), (2, 194369487780), (3, 129579658520), (4, 97184743890), (5, 77747795112), (6, 64789829260), (8, 48592371945), (10, 38873897556), (12, 32394914630), (13, 29902998120), (15, 25915931704), (20, 19436948778), (24, 16197457315), (26, 14951499060), (30, 12957965852), (39, 9967666040), (40, 9718474389), (52, 7475749530), (60, 6478982926), (65, 5980599624), (78, 4983833020), (104, 3737874765), (120, 3239491463), (130, 2990299812), (156, 2491916510), (195, 1993533208), (260, 1495149906), (312, 1245958255), (390, 996766604), (520, 747574953), (780, 498383302), (1560, 249191651), (1997, 194661480), (3994, 97330740), (5991, 64887160), (7988, 48665370), (9985, 38932296), (11982, 32443580), (15976, 24332685), (19970, 19466148), (23964, 16221790), (25961, 14973960), (29955, 12977432), (39940, 9733074), (47928, 8110895), (51922, 7486980), (59910, 6488716), (77883, 4991320), (79880, 4866537), (103844, 3743490), (119820, 3244358), (124783, 3115320), (129805, 2994792), (155766, 2495660), (207688, 1871745), (239640, 1622179), (249566, 1557660), (259610, 1497396), (311532, 1247830), (374349, 1038440), (389415, 998264), (499132, 778830), (519220, 748698), (623064, 623915)]