78913941980

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1\times {\mathrm{293}}^1\times {\mathrm{859}}^1$

素因数の和:1479

約数の個数: 96

約数和(自身を含む): 169866002880

約数和(自身を除く): 90952060900

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 257, 293, 305, 514, 586, 610, 859, 1028, 1172, 1220, 1285, 1465, 1718, 2570, 2930, 3436, 4295, 5140, 5860, 8590, 15677, 17180, 17873, 31354, 35746, 52399, 62708, 71492, 75301, 78385, 89365, 104798, 150602, 156770, 178730, 209596, 220763, 251687, 261995, 301204, 313540, 357460, 376505, 441526, 503374, 523990, 753010, 883052, 1006748, 1047980, 1103815, 1258435, 1506020, 2207630, 2516870, 4415260, 4593361, 5033740, 9186722, 13466543, 15352907, 18373444, 22966805, 26933086, 30705814, 45933610, 53866172, 61411628, 64683559, 67332715, 76764535, 91867220, 129367118, 134665430, 153529070, 258734236, 269330860, 307058140, 323417795, 646835590, 1293671180, 3945697099, 7891394198, 15782788396, 19728485495, 39456970990, 78913941980]

約数ペア:

[(1, 78913941980), (2, 39456970990), (4, 19728485495), (5, 15782788396), (10, 7891394198), (20, 3945697099), (61, 1293671180), (122, 646835590), (244, 323417795), (257, 307058140), (293, 269330860), (305, 258734236), (514, 153529070), (586, 134665430), (610, 129367118), (859, 91867220), (1028, 76764535), (1172, 67332715), (1220, 64683559), (1285, 61411628), (1465, 53866172), (1718, 45933610), (2570, 30705814), (2930, 26933086), (3436, 22966805), (4295, 18373444), (5140, 15352907), (5860, 13466543), (8590, 9186722), (15677, 5033740), (17180, 4593361), (17873, 4415260), (31354, 2516870), (35746, 2207630), (52399, 1506020), (62708, 1258435), (71492, 1103815), (75301, 1047980), (78385, 1006748), (89365, 883052), (104798, 753010), (150602, 523990), (156770, 503374), (178730, 441526), (209596, 376505), (220763, 357460), (251687, 313540), (261995, 301204)]