27978120

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:180

約数の個数: 192

約数和(自身を含む): 98841600

約数和(自身を除く): 70863480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 30, 31, 36, 40, 45, 46, 60, 62, 69, 72, 90, 92, 93, 109, 115, 120, 124, 138, 155, 180, 184, 186, 207, 218, 230, 248, 276, 279, 310, 327, 345, 360, 372, 414, 436, 460, 465, 545, 552, 558, 620, 654, 690, 713, 744, 828, 872, 920, 930, 981, 1035, 1090, 1116, 1240, 1308, 1380, 1395, 1426, 1635, 1656, 1860, 1962, 2070, 2139, 2180, 2232, 2507, 2616, 2760, 2790, 2852, 3270, 3379, 3565, 3720, 3924, 4140, 4278, 4360, 4905, 5014, 5580, 5704, 6417, 6540, 6758, 7130, 7521, 7848, 8280, 8556, 9810, 10028, 10137, 10695, 11160, 12535, 12834, 13080, 13516, 14260, 15042, 16895, 17112, 19620, 20056, 20274, 21390, 22563, 25070, 25668, 27032, 28520, 30084, 30411, 32085, 33790, 37605, 39240, 40548, 42780, 45126, 50140, 50685, 51336, 60168, 60822, 64170, 67580, 75210, 77717, 81096, 85560, 90252, 100280, 101370, 112815, 121644, 128340, 135160, 150420, 152055, 155434, 180504, 202740, 225630, 233151, 243288, 256680, 300840, 304110, 310868, 388585, 405480, 451260, 466302, 608220, 621736, 699453, 777170, 902520, 932604, 1165755, 1216440, 1398906, 1554340, 1865208, 2331510, 2797812, 3108680, 3497265, 4663020, 5595624, 6994530, 9326040, 13989060, 27978120]

約数ペア:

[(1, 27978120), (2, 13989060), (3, 9326040), (4, 6994530), (5, 5595624), (6, 4663020), (8, 3497265), (9, 3108680), (10, 2797812), (12, 2331510), (15, 1865208), (18, 1554340), (20, 1398906), (23, 1216440), (24, 1165755), (30, 932604), (31, 902520), (36, 777170), (40, 699453), (45, 621736), (46, 608220), (60, 466302), (62, 451260), (69, 405480), (72, 388585), (90, 310868), (92, 304110), (93, 300840), (109, 256680), (115, 243288), (120, 233151), (124, 225630), (138, 202740), (155, 180504), (180, 155434), (184, 152055), (186, 150420), (207, 135160), (218, 128340), (230, 121644), (248, 112815), (276, 101370), (279, 100280), (310, 90252), (327, 85560), (345, 81096), (360, 77717), (372, 75210), (414, 67580), (436, 64170), (460, 60822), (465, 60168), (545, 51336), (552, 50685), (558, 50140), (620, 45126), (654, 42780), (690, 40548), (713, 39240), (744, 37605), (828, 33790), (872, 32085), (920, 30411), (930, 30084), (981, 28520), (1035, 27032), (1090, 25668), (1116, 25070), (1240, 22563), (1308, 21390), (1380, 20274), (1395, 20056), (1426, 19620), (1635, 17112), (1656, 16895), (1860, 15042), (1962, 14260), (2070, 13516), (2139, 13080), (2180, 12834), (2232, 12535), (2507, 11160), (2616, 10695), (2760, 10137), (2790, 10028), (2852, 9810), (3270, 8556), (3379, 8280), (3565, 7848), (3720, 7521), (3924, 7130), (4140, 6758), (4278, 6540), (4360, 6417), (4905, 5704), (5014, 5580)]