30781560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{191}}^1$

素因数の和:301

約数の個数: 128

約数和(自身を含む): 99532800

約数和(自身を除く): 68751240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 79, 85, 102, 120, 136, 158, 170, 191, 204, 237, 255, 316, 340, 382, 395, 408, 474, 510, 573, 632, 680, 764, 790, 948, 955, 1020, 1146, 1185, 1343, 1528, 1580, 1896, 1910, 2040, 2292, 2370, 2686, 2865, 3160, 3247, 3820, 4029, 4584, 4740, 5372, 5730, 6494, 6715, 7640, 8058, 9480, 9741, 10744, 11460, 12988, 13430, 15089, 16116, 16235, 19482, 20145, 22920, 25976, 26860, 30178, 32232, 32470, 38964, 40290, 45267, 48705, 53720, 60356, 64940, 75445, 77928, 80580, 90534, 97410, 120712, 129880, 150890, 161160, 181068, 194820, 226335, 256513, 301780, 362136, 389640, 452670, 513026, 603560, 769539, 905340, 1026052, 1282565, 1539078, 1810680, 2052104, 2565130, 3078156, 3847695, 5130260, 6156312, 7695390, 10260520, 15390780, 30781560]

約数ペア:

[(1, 30781560), (2, 15390780), (3, 10260520), (4, 7695390), (5, 6156312), (6, 5130260), (8, 3847695), (10, 3078156), (12, 2565130), (15, 2052104), (17, 1810680), (20, 1539078), (24, 1282565), (30, 1026052), (34, 905340), (40, 769539), (51, 603560), (60, 513026), (68, 452670), (79, 389640), (85, 362136), (102, 301780), (120, 256513), (136, 226335), (158, 194820), (170, 181068), (191, 161160), (204, 150890), (237, 129880), (255, 120712), (316, 97410), (340, 90534), (382, 80580), (395, 77928), (408, 75445), (474, 64940), (510, 60356), (573, 53720), (632, 48705), (680, 45267), (764, 40290), (790, 38964), (948, 32470), (955, 32232), (1020, 30178), (1146, 26860), (1185, 25976), (1343, 22920), (1528, 20145), (1580, 19482), (1896, 16235), (1910, 16116), (2040, 15089), (2292, 13430), (2370, 12988), (2686, 11460), (2865, 10744), (3160, 9741), (3247, 9480), (3820, 8058), (4029, 7640), (4584, 6715), (4740, 6494), (5372, 5730)]