198451755

素因数分解:

$3^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1$

素因数の和:385

約数の個数: 64

約数和(自身を含む): 362880000

約数和(自身を除く): 164428245

約数列:

[1, 3, 5, 9, 15, 27, 45, 83, 89, 135, 199, 249, 267, 415, 445, 597, 747, 801, 995, 1245, 1335, 1791, 2241, 2403, 2985, 3735, 4005, 5373, 7387, 8955, 11205, 12015, 16517, 17711, 22161, 26865, 36935, 49551, 53133, 66483, 82585, 88555, 110805, 148653, 159399, 199449, 247755, 265665, 332415, 445959, 478197, 743265, 796995, 997245, 1470013, 2229795, 2390985, 4410039, 7350065, 13230117, 22050195, 39690351, 66150585, 198451755]

約数ペア:

[(1, 198451755), (3, 66150585), (5, 39690351), (9, 22050195), (15, 13230117), (27, 7350065), (45, 4410039), (83, 2390985), (89, 2229795), (135, 1470013), (199, 997245), (249, 796995), (267, 743265), (415, 478197), (445, 445959), (597, 332415), (747, 265665), (801, 247755), (995, 199449), (1245, 159399), (1335, 148653), (1791, 110805), (2241, 88555), (2403, 82585), (2985, 66483), (3735, 53133), (4005, 49551), (5373, 36935), (7387, 26865), (8955, 22161), (11205, 17711), (12015, 16517)]