30911440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{191}}^1$

素因数の和:245

約数の個数: 120

約数和(自身を含む): 87708672

約数和(自身を除く): 56797232

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 56, 68, 70, 80, 85, 112, 119, 136, 140, 170, 191, 238, 272, 280, 289, 340, 382, 476, 560, 578, 595, 680, 764, 952, 955, 1156, 1190, 1337, 1360, 1445, 1528, 1904, 1910, 2023, 2312, 2380, 2674, 2890, 3056, 3247, 3820, 4046, 4624, 4760, 5348, 5780, 6494, 6685, 7640, 8092, 9520, 10115, 10696, 11560, 12988, 13370, 15280, 16184, 16235, 20230, 21392, 22729, 23120, 25976, 26740, 32368, 32470, 40460, 45458, 51952, 53480, 55199, 64940, 80920, 90916, 106960, 110398, 113645, 129880, 161840, 181832, 220796, 227290, 259760, 275995, 363664, 386393, 441592, 454580, 551990, 772786, 883184, 909160, 1103980, 1545572, 1818320, 1931965, 2207960, 3091144, 3863930, 4415920, 6182288, 7727860, 15455720, 30911440]

約数ペア:

[(1, 30911440), (2, 15455720), (4, 7727860), (5, 6182288), (7, 4415920), (8, 3863930), (10, 3091144), (14, 2207960), (16, 1931965), (17, 1818320), (20, 1545572), (28, 1103980), (34, 909160), (35, 883184), (40, 772786), (56, 551990), (68, 454580), (70, 441592), (80, 386393), (85, 363664), (112, 275995), (119, 259760), (136, 227290), (140, 220796), (170, 181832), (191, 161840), (238, 129880), (272, 113645), (280, 110398), (289, 106960), (340, 90916), (382, 80920), (476, 64940), (560, 55199), (578, 53480), (595, 51952), (680, 45458), (764, 40460), (952, 32470), (955, 32368), (1156, 26740), (1190, 25976), (1337, 23120), (1360, 22729), (1445, 21392), (1528, 20230), (1904, 16235), (1910, 16184), (2023, 15280), (2312, 13370), (2380, 12988), (2674, 11560), (2890, 10696), (3056, 10115), (3247, 9520), (3820, 8092), (4046, 7640), (4624, 6685), (4760, 6494), (5348, 5780)]