20999927360

素因数分解:

$2^6\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{32059}}^1$

素因数の和:32188

約数の個数: 112

約数和(自身を含む): 52768195200

約数和(自身を除く): 31768267840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 89, 92, 115, 160, 178, 184, 230, 320, 356, 368, 445, 460, 712, 736, 890, 920, 1424, 1472, 1780, 1840, 2047, 2848, 3560, 3680, 4094, 5696, 7120, 7360, 8188, 10235, 14240, 16376, 20470, 28480, 32059, 32752, 40940, 64118, 65504, 81880, 128236, 131008, 160295, 163760, 256472, 320590, 327520, 512944, 641180, 655040, 737357, 1025888, 1282360, 1474714, 2051776, 2564720, 2853251, 2949428, 3686785, 5129440, 5706502, 5898856, 7373570, 10258880, 11413004, 11797712, 14266255, 14747140, 22826008, 23595424, 28532510, 29494280, 45652016, 47190848, 57065020, 58988560, 65624773, 91304032, 114130040, 117977120, 131249546, 182608064, 228260080, 235954240, 262499092, 328123865, 456520160, 524998184, 656247730, 913040320, 1049996368, 1312495460, 2099992736, 2624990920, 4199985472, 5249981840, 10499963680, 20999927360]

約数ペア:

[(1, 20999927360), (2, 10499963680), (4, 5249981840), (5, 4199985472), (8, 2624990920), (10, 2099992736), (16, 1312495460), (20, 1049996368), (23, 913040320), (32, 656247730), (40, 524998184), (46, 456520160), (64, 328123865), (80, 262499092), (89, 235954240), (92, 228260080), (115, 182608064), (160, 131249546), (178, 117977120), (184, 114130040), (230, 91304032), (320, 65624773), (356, 58988560), (368, 57065020), (445, 47190848), (460, 45652016), (712, 29494280), (736, 28532510), (890, 23595424), (920, 22826008), (1424, 14747140), (1472, 14266255), (1780, 11797712), (1840, 11413004), (2047, 10258880), (2848, 7373570), (3560, 5898856), (3680, 5706502), (4094, 5129440), (5696, 3686785), (7120, 2949428), (7360, 2853251), (8188, 2564720), (10235, 2051776), (14240, 1474714), (16376, 1282360), (20470, 1025888), (28480, 737357), (32059, 655040), (32752, 641180), (40940, 512944), (64118, 327520), (65504, 320590), (81880, 256472), (128236, 163760), (131008, 160295)]