28205040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1$

素因数の和:287

約数の個数: 160

約数和(自身を含む): 95993856

約数和(自身を除く): 67788816

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 31, 34, 40, 48, 51, 60, 62, 68, 80, 85, 93, 102, 120, 124, 136, 155, 170, 186, 204, 223, 240, 248, 255, 272, 310, 340, 372, 408, 446, 465, 496, 510, 527, 620, 669, 680, 744, 816, 892, 930, 1020, 1054, 1115, 1240, 1338, 1360, 1488, 1581, 1784, 1860, 2040, 2108, 2230, 2480, 2635, 2676, 3162, 3345, 3568, 3720, 3791, 4080, 4216, 4460, 5270, 5352, 6324, 6690, 6913, 7440, 7582, 7905, 8432, 8920, 10540, 10704, 11373, 12648, 13380, 13826, 15164, 15810, 17840, 18955, 20739, 21080, 22746, 25296, 26760, 27652, 30328, 31620, 34565, 37910, 41478, 42160, 45492, 53520, 55304, 56865, 60656, 63240, 69130, 75820, 82956, 90984, 103695, 110608, 113730, 117521, 126480, 138260, 151640, 165912, 181968, 207390, 227460, 235042, 276520, 303280, 331824, 352563, 414780, 454920, 470084, 553040, 587605, 705126, 829560, 909840, 940168, 1175210, 1410252, 1659120, 1762815, 1880336, 2350420, 2820504, 3525630, 4700840, 5641008, 7051260, 9401680, 14102520, 28205040]

約数ペア:

[(1, 28205040), (2, 14102520), (3, 9401680), (4, 7051260), (5, 5641008), (6, 4700840), (8, 3525630), (10, 2820504), (12, 2350420), (15, 1880336), (16, 1762815), (17, 1659120), (20, 1410252), (24, 1175210), (30, 940168), (31, 909840), (34, 829560), (40, 705126), (48, 587605), (51, 553040), (60, 470084), (62, 454920), (68, 414780), (80, 352563), (85, 331824), (93, 303280), (102, 276520), (120, 235042), (124, 227460), (136, 207390), (155, 181968), (170, 165912), (186, 151640), (204, 138260), (223, 126480), (240, 117521), (248, 113730), (255, 110608), (272, 103695), (310, 90984), (340, 82956), (372, 75820), (408, 69130), (446, 63240), (465, 60656), (496, 56865), (510, 55304), (527, 53520), (620, 45492), (669, 42160), (680, 41478), (744, 37910), (816, 34565), (892, 31620), (930, 30328), (1020, 27652), (1054, 26760), (1115, 25296), (1240, 22746), (1338, 21080), (1360, 20739), (1488, 18955), (1581, 17840), (1784, 15810), (1860, 15164), (2040, 13826), (2108, 13380), (2230, 12648), (2480, 11373), (2635, 10704), (2676, 10540), (3162, 8920), (3345, 8432), (3568, 7905), (3720, 7582), (3791, 7440), (4080, 6913), (4216, 6690), (4460, 6324), (5270, 5352)]