20808930

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1$

素因数の和:291

約数の個数: 64

約数和(自身を含む): 51746688

約数和(自身を除く): 30937758

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 61, 83, 122, 137, 166, 183, 249, 274, 305, 366, 411, 415, 498, 610, 685, 822, 830, 915, 1245, 1370, 1830, 2055, 2490, 4110, 5063, 8357, 10126, 11371, 15189, 16714, 22742, 25071, 25315, 30378, 34113, 41785, 50142, 50630, 56855, 68226, 75945, 83570, 113710, 125355, 151890, 170565, 250710, 341130, 693631, 1387262, 2080893, 3468155, 4161786, 6936310, 10404465, 20808930]

約数ペア:

[(1, 20808930), (2, 10404465), (3, 6936310), (5, 4161786), (6, 3468155), (10, 2080893), (15, 1387262), (30, 693631), (61, 341130), (83, 250710), (122, 170565), (137, 151890), (166, 125355), (183, 113710), (249, 83570), (274, 75945), (305, 68226), (366, 56855), (411, 50630), (415, 50142), (498, 41785), (610, 34113), (685, 30378), (822, 25315), (830, 25071), (915, 22742), (1245, 16714), (1370, 15189), (1830, 11371), (2055, 10126), (2490, 8357), (4110, 5063)]