1815690840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{13997}}^1$

素因数の和:14081

約数の個数: 128

約数和(自身を含む): 5805250560

約数和(自身を除く): 3989559720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 47, 60, 69, 92, 94, 115, 120, 138, 141, 184, 188, 230, 235, 276, 282, 345, 376, 460, 470, 552, 564, 690, 705, 920, 940, 1081, 1128, 1380, 1410, 1880, 2162, 2760, 2820, 3243, 4324, 5405, 5640, 6486, 8648, 10810, 12972, 13997, 16215, 21620, 25944, 27994, 32430, 41991, 43240, 55988, 64860, 69985, 83982, 111976, 129720, 139970, 167964, 209955, 279940, 321931, 335928, 419910, 559880, 643862, 657859, 839820, 965793, 1287724, 1315718, 1609655, 1679640, 1931586, 1973577, 2575448, 2631436, 3219310, 3289295, 3863172, 3947154, 4828965, 5262872, 6438620, 6578590, 7726344, 7894308, 9657930, 9867885, 12877240, 13157180, 15130757, 15788616, 19315860, 19735770, 26314360, 30261514, 38631720, 39471540, 45392271, 60523028, 75653785, 78943080, 90784542, 121046056, 151307570, 181569084, 226961355, 302615140, 363138168, 453922710, 605230280, 907845420, 1815690840]

約数ペア:

[(1, 1815690840), (2, 907845420), (3, 605230280), (4, 453922710), (5, 363138168), (6, 302615140), (8, 226961355), (10, 181569084), (12, 151307570), (15, 121046056), (20, 90784542), (23, 78943080), (24, 75653785), (30, 60523028), (40, 45392271), (46, 39471540), (47, 38631720), (60, 30261514), (69, 26314360), (92, 19735770), (94, 19315860), (115, 15788616), (120, 15130757), (138, 13157180), (141, 12877240), (184, 9867885), (188, 9657930), (230, 7894308), (235, 7726344), (276, 6578590), (282, 6438620), (345, 5262872), (376, 4828965), (460, 3947154), (470, 3863172), (552, 3289295), (564, 3219310), (690, 2631436), (705, 2575448), (920, 1973577), (940, 1931586), (1081, 1679640), (1128, 1609655), (1380, 1315718), (1410, 1287724), (1880, 965793), (2162, 839820), (2760, 657859), (2820, 643862), (3243, 559880), (4324, 419910), (5405, 335928), (5640, 321931), (6486, 279940), (8648, 209955), (10810, 167964), (12972, 139970), (13997, 129720), (16215, 111976), (21620, 83982), (25944, 69985), (27994, 64860), (32430, 55988), (41991, 43240)]