19897590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:285

約数の個数: 64

約数和(自身を含む): 49496832

約数和(自身を除く): 29599242

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 61, 83, 122, 131, 166, 183, 249, 262, 305, 366, 393, 415, 498, 610, 655, 786, 830, 915, 1245, 1310, 1830, 1965, 2490, 3930, 5063, 7991, 10126, 10873, 15189, 15982, 21746, 23973, 25315, 30378, 32619, 39955, 47946, 50630, 54365, 65238, 75945, 79910, 108730, 119865, 151890, 163095, 239730, 326190, 663253, 1326506, 1989759, 3316265, 3979518, 6632530, 9948795, 19897590]

約数ペア:

[(1, 19897590), (2, 9948795), (3, 6632530), (5, 3979518), (6, 3316265), (10, 1989759), (15, 1326506), (30, 663253), (61, 326190), (83, 239730), (122, 163095), (131, 151890), (166, 119865), (183, 108730), (249, 79910), (262, 75945), (305, 65238), (366, 54365), (393, 50630), (415, 47946), (498, 39955), (610, 32619), (655, 30378), (786, 25315), (830, 23973), (915, 21746), (1245, 15982), (1310, 15189), (1830, 10873), (1965, 10126), (2490, 7991), (3930, 5063)]