89487320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1$

素因数の和:285

約数の個数: 128

約数和(自身を含む): 235146240

約数和(自身を除く): 145658920

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 53, 65, 68, 85, 104, 106, 130, 136, 170, 191, 212, 221, 260, 265, 340, 382, 424, 442, 520, 530, 680, 689, 764, 884, 901, 955, 1060, 1105, 1378, 1528, 1768, 1802, 1910, 2120, 2210, 2483, 2756, 3247, 3445, 3604, 3820, 4420, 4505, 4966, 5512, 6494, 6890, 7208, 7640, 8840, 9010, 9932, 10123, 11713, 12415, 12988, 13780, 16235, 18020, 19864, 20246, 23426, 24830, 25976, 27560, 32470, 36040, 40492, 42211, 46852, 49660, 50615, 58565, 64940, 80984, 84422, 93704, 99320, 101230, 117130, 129880, 131599, 168844, 172091, 202460, 211055, 234260, 263198, 337688, 344182, 404920, 422110, 468520, 526396, 657995, 688364, 844220, 860455, 1052792, 1315990, 1376728, 1688440, 1720910, 2237183, 2631980, 3441820, 4474366, 5263960, 6883640, 8948732, 11185915, 17897464, 22371830, 44743660, 89487320]

約数ペア:

[(1, 89487320), (2, 44743660), (4, 22371830), (5, 17897464), (8, 11185915), (10, 8948732), (13, 6883640), (17, 5263960), (20, 4474366), (26, 3441820), (34, 2631980), (40, 2237183), (52, 1720910), (53, 1688440), (65, 1376728), (68, 1315990), (85, 1052792), (104, 860455), (106, 844220), (130, 688364), (136, 657995), (170, 526396), (191, 468520), (212, 422110), (221, 404920), (260, 344182), (265, 337688), (340, 263198), (382, 234260), (424, 211055), (442, 202460), (520, 172091), (530, 168844), (680, 131599), (689, 129880), (764, 117130), (884, 101230), (901, 99320), (955, 93704), (1060, 84422), (1105, 80984), (1378, 64940), (1528, 58565), (1768, 50615), (1802, 49660), (1910, 46852), (2120, 42211), (2210, 40492), (2483, 36040), (2756, 32470), (3247, 27560), (3445, 25976), (3604, 24830), (3820, 23426), (4420, 20246), (4505, 19864), (4966, 18020), (5512, 16235), (6494, 13780), (6890, 12988), (7208, 12415), (7640, 11713), (8840, 10123), (9010, 9932)]