216656520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{419}}^1$

素因数の和:603

約数の個数: 128

約数和(自身を含む): 677376000

約数和(自身を除く): 460719480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 120, 124, 139, 155, 186, 248, 278, 310, 372, 417, 419, 465, 556, 620, 695, 744, 834, 838, 930, 1112, 1240, 1257, 1390, 1668, 1676, 1860, 2085, 2095, 2514, 2780, 3336, 3352, 3720, 4170, 4190, 4309, 5028, 5560, 6285, 8340, 8380, 8618, 10056, 12570, 12927, 12989, 16680, 16760, 17236, 21545, 25140, 25854, 25978, 34472, 38967, 43090, 50280, 51708, 51956, 58241, 64635, 64945, 77934, 86180, 103416, 103912, 116482, 129270, 129890, 155868, 172360, 174723, 194835, 232964, 258540, 259780, 291205, 311736, 349446, 389670, 465928, 517080, 519560, 582410, 698892, 779340, 873615, 1164820, 1397784, 1558680, 1747230, 1805471, 2329640, 3494460, 3610942, 5416413, 6988920, 7221884, 9027355, 10832826, 14443768, 18054710, 21665652, 27082065, 36109420, 43331304, 54164130, 72218840, 108328260, 216656520]

約数ペア:

[(1, 216656520), (2, 108328260), (3, 72218840), (4, 54164130), (5, 43331304), (6, 36109420), (8, 27082065), (10, 21665652), (12, 18054710), (15, 14443768), (20, 10832826), (24, 9027355), (30, 7221884), (31, 6988920), (40, 5416413), (60, 3610942), (62, 3494460), (93, 2329640), (120, 1805471), (124, 1747230), (139, 1558680), (155, 1397784), (186, 1164820), (248, 873615), (278, 779340), (310, 698892), (372, 582410), (417, 519560), (419, 517080), (465, 465928), (556, 389670), (620, 349446), (695, 311736), (744, 291205), (834, 259780), (838, 258540), (930, 232964), (1112, 194835), (1240, 174723), (1257, 172360), (1390, 155868), (1668, 129890), (1676, 129270), (1860, 116482), (2085, 103912), (2095, 103416), (2514, 86180), (2780, 77934), (3336, 64945), (3352, 64635), (3720, 58241), (4170, 51956), (4190, 51708), (4309, 50280), (5028, 43090), (5560, 38967), (6285, 34472), (8340, 25978), (8380, 25854), (8618, 25140), (10056, 21545), (12570, 17236), (12927, 16760), (12989, 16680)]