20261280

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1$

素因数の和:239

約数の個数: 192

約数和(自身を含む): 73156608

約数和(自身を除く): 52895328

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 17, 20, 24, 26, 30, 32, 34, 39, 40, 48, 51, 52, 60, 65, 68, 78, 80, 85, 96, 102, 104, 120, 130, 136, 156, 160, 170, 191, 195, 204, 208, 221, 240, 255, 260, 272, 312, 340, 382, 390, 408, 416, 442, 480, 510, 520, 544, 573, 624, 663, 680, 764, 780, 816, 884, 955, 1020, 1040, 1105, 1146, 1248, 1326, 1360, 1528, 1560, 1632, 1768, 1910, 2040, 2080, 2210, 2292, 2483, 2652, 2720, 2865, 3056, 3120, 3247, 3315, 3536, 3820, 4080, 4420, 4584, 4966, 5304, 5730, 6112, 6240, 6494, 6630, 7072, 7449, 7640, 8160, 8840, 9168, 9741, 9932, 10608, 11460, 12415, 12988, 13260, 14898, 15280, 16235, 17680, 18336, 19482, 19864, 21216, 22920, 24830, 25976, 26520, 29796, 30560, 32470, 35360, 37245, 38964, 39728, 42211, 45840, 48705, 49660, 51952, 53040, 59592, 64940, 74490, 77928, 79456, 84422, 91680, 97410, 99320, 103904, 106080, 119184, 126633, 129880, 148980, 155856, 168844, 194820, 198640, 211055, 238368, 253266, 259760, 297960, 311712, 337688, 389640, 397280, 422110, 506532, 519520, 595920, 633165, 675376, 779280, 844220, 1013064, 1191840, 1266330, 1350752, 1558560, 1688440, 2026128, 2532660, 3376880, 4052256, 5065320, 6753760, 10130640, 20261280]

約数ペア:

[(1, 20261280), (2, 10130640), (3, 6753760), (4, 5065320), (5, 4052256), (6, 3376880), (8, 2532660), (10, 2026128), (12, 1688440), (13, 1558560), (15, 1350752), (16, 1266330), (17, 1191840), (20, 1013064), (24, 844220), (26, 779280), (30, 675376), (32, 633165), (34, 595920), (39, 519520), (40, 506532), (48, 422110), (51, 397280), (52, 389640), (60, 337688), (65, 311712), (68, 297960), (78, 259760), (80, 253266), (85, 238368), (96, 211055), (102, 198640), (104, 194820), (120, 168844), (130, 155856), (136, 148980), (156, 129880), (160, 126633), (170, 119184), (191, 106080), (195, 103904), (204, 99320), (208, 97410), (221, 91680), (240, 84422), (255, 79456), (260, 77928), (272, 74490), (312, 64940), (340, 59592), (382, 53040), (390, 51952), (408, 49660), (416, 48705), (442, 45840), (480, 42211), (510, 39728), (520, 38964), (544, 37245), (573, 35360), (624, 32470), (663, 30560), (680, 29796), (764, 26520), (780, 25976), (816, 24830), (884, 22920), (955, 21216), (1020, 19864), (1040, 19482), (1105, 18336), (1146, 17680), (1248, 16235), (1326, 15280), (1360, 14898), (1528, 13260), (1560, 12988), (1632, 12415), (1768, 11460), (1910, 10608), (2040, 9932), (2080, 9741), (2210, 9168), (2292, 8840), (2483, 8160), (2652, 7640), (2720, 7449), (2865, 7072), (3056, 6630), (3120, 6494), (3247, 6240), (3315, 6112), (3536, 5730), (3820, 5304), (4080, 4966), (4420, 4584)]