21820560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1$

素因数の和:165

約数の個数: 160

約数和(自身を含む): 72852480

約数和(自身を除く): 51031920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 59, 60, 67, 69, 80, 92, 115, 118, 120, 134, 138, 177, 184, 201, 230, 236, 240, 268, 276, 295, 335, 345, 354, 368, 402, 460, 472, 536, 552, 590, 670, 690, 708, 804, 885, 920, 944, 1005, 1072, 1104, 1180, 1340, 1357, 1380, 1416, 1541, 1608, 1770, 1840, 2010, 2360, 2680, 2714, 2760, 2832, 3082, 3216, 3540, 3953, 4020, 4071, 4623, 4720, 5360, 5428, 5520, 6164, 6785, 7080, 7705, 7906, 8040, 8142, 9246, 10856, 11859, 12328, 13570, 14160, 15410, 15812, 16080, 16284, 18492, 19765, 20355, 21712, 23115, 23718, 24656, 27140, 30820, 31624, 32568, 36984, 39530, 40710, 46230, 47436, 54280, 59295, 61640, 63248, 65136, 73968, 79060, 81420, 90919, 92460, 94872, 108560, 118590, 123280, 158120, 162840, 181838, 184920, 189744, 237180, 272757, 316240, 325680, 363676, 369840, 454595, 474360, 545514, 727352, 909190, 948720, 1091028, 1363785, 1454704, 1818380, 2182056, 2727570, 3636760, 4364112, 5455140, 7273520, 10910280, 21820560]

約数ペア:

[(1, 21820560), (2, 10910280), (3, 7273520), (4, 5455140), (5, 4364112), (6, 3636760), (8, 2727570), (10, 2182056), (12, 1818380), (15, 1454704), (16, 1363785), (20, 1091028), (23, 948720), (24, 909190), (30, 727352), (40, 545514), (46, 474360), (48, 454595), (59, 369840), (60, 363676), (67, 325680), (69, 316240), (80, 272757), (92, 237180), (115, 189744), (118, 184920), (120, 181838), (134, 162840), (138, 158120), (177, 123280), (184, 118590), (201, 108560), (230, 94872), (236, 92460), (240, 90919), (268, 81420), (276, 79060), (295, 73968), (335, 65136), (345, 63248), (354, 61640), (368, 59295), (402, 54280), (460, 47436), (472, 46230), (536, 40710), (552, 39530), (590, 36984), (670, 32568), (690, 31624), (708, 30820), (804, 27140), (885, 24656), (920, 23718), (944, 23115), (1005, 21712), (1072, 20355), (1104, 19765), (1180, 18492), (1340, 16284), (1357, 16080), (1380, 15812), (1416, 15410), (1541, 14160), (1608, 13570), (1770, 12328), (1840, 11859), (2010, 10856), (2360, 9246), (2680, 8142), (2714, 8040), (2760, 7906), (2832, 7705), (3082, 7080), (3216, 6785), (3540, 6164), (3953, 5520), (4020, 5428), (4071, 5360), (4623, 4720)]