1989485160

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{8123}}^1$

素因数の和:8307

約数の個数: 128

約数和(自身を含む): 6469303680

約数和(自身を除く): 4479818520

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, 157, 195, 260, 312, 314, 390, 471, 520, 628, 780, 785, 942, 1256, 1560, 1570, 1884, 2041, 2355, 3140, 3768, 4082, 4710, 6123, 6280, 8123, 8164, 9420, 10205, 12246, 16246, 16328, 18840, 20410, 24369, 24492, 30615, 32492, 40615, 40820, 48738, 48984, 61230, 64984, 81230, 81640, 97476, 105599, 121845, 122460, 162460, 194952, 211198, 243690, 244920, 316797, 324920, 422396, 487380, 527995, 633594, 844792, 974760, 1055990, 1267188, 1275311, 1583985, 2111980, 2534376, 2550622, 3167970, 3825933, 4223960, 5101244, 6335940, 6376555, 7651866, 10202488, 12671880, 12753110, 15303732, 16579043, 19129665, 25506220, 30607464, 33158086, 38259330, 49737129, 51012440, 66316172, 76518660, 82895215, 99474258, 132632344, 153037320, 165790430, 198948516, 248685645, 331580860, 397897032, 497371290, 663161720, 994742580, 1989485160]

約数ペア:

[(1, 1989485160), (2, 994742580), (3, 663161720), (4, 497371290), (5, 397897032), (6, 331580860), (8, 248685645), (10, 198948516), (12, 165790430), (13, 153037320), (15, 132632344), (20, 99474258), (24, 82895215), (26, 76518660), (30, 66316172), (39, 51012440), (40, 49737129), (52, 38259330), (60, 33158086), (65, 30607464), (78, 25506220), (104, 19129665), (120, 16579043), (130, 15303732), (156, 12753110), (157, 12671880), (195, 10202488), (260, 7651866), (312, 6376555), (314, 6335940), (390, 5101244), (471, 4223960), (520, 3825933), (628, 3167970), (780, 2550622), (785, 2534376), (942, 2111980), (1256, 1583985), (1560, 1275311), (1570, 1267188), (1884, 1055990), (2041, 974760), (2355, 844792), (3140, 633594), (3768, 527995), (4082, 487380), (4710, 422396), (6123, 324920), (6280, 316797), (8123, 244920), (8164, 243690), (9420, 211198), (10205, 194952), (12246, 162460), (16246, 122460), (16328, 121845), (18840, 105599), (20410, 97476), (24369, 81640), (24492, 81230), (30615, 64984), (32492, 61230), (40615, 48984), (40820, 48738)]