12290720

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{311}}^1$

素因数の和:358

約数の個数: 96

約数和(自身を含む): 33022080

約数和(自身を除く): 20731360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 32, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 160, 190, 208, 247, 260, 304, 311, 380, 416, 494, 520, 608, 622, 760, 988, 1040, 1235, 1244, 1520, 1555, 1976, 2080, 2470, 2488, 3040, 3110, 3952, 4043, 4940, 4976, 5909, 6220, 7904, 8086, 9880, 9952, 11818, 12440, 16172, 19760, 20215, 23636, 24880, 29545, 32344, 39520, 40430, 47272, 49760, 59090, 64688, 76817, 80860, 94544, 118180, 129376, 153634, 161720, 189088, 236360, 307268, 323440, 384085, 472720, 614536, 646880, 768170, 945440, 1229072, 1536340, 2458144, 3072680, 6145360, 12290720]

約数ペア:

[(1, 12290720), (2, 6145360), (4, 3072680), (5, 2458144), (8, 1536340), (10, 1229072), (13, 945440), (16, 768170), (19, 646880), (20, 614536), (26, 472720), (32, 384085), (38, 323440), (40, 307268), (52, 236360), (65, 189088), (76, 161720), (80, 153634), (95, 129376), (104, 118180), (130, 94544), (152, 80860), (160, 76817), (190, 64688), (208, 59090), (247, 49760), (260, 47272), (304, 40430), (311, 39520), (380, 32344), (416, 29545), (494, 24880), (520, 23636), (608, 20215), (622, 19760), (760, 16172), (988, 12440), (1040, 11818), (1235, 9952), (1244, 9880), (1520, 8086), (1555, 7904), (1976, 6220), (2080, 5909), (2470, 4976), (2488, 4940), (3040, 4043), (3110, 3952)]