78521640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{631}}^1$

素因数の和:723

約数の個数: 128

約数和(自身を含む): 253912320

約数和(自身を除く): 175390680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 61, 68, 85, 102, 120, 122, 136, 170, 183, 204, 244, 255, 305, 340, 366, 408, 488, 510, 610, 631, 680, 732, 915, 1020, 1037, 1220, 1262, 1464, 1830, 1893, 2040, 2074, 2440, 2524, 3111, 3155, 3660, 3786, 4148, 5048, 5185, 6222, 6310, 7320, 7572, 8296, 9465, 10370, 10727, 12444, 12620, 15144, 15555, 18930, 20740, 21454, 24888, 25240, 31110, 32181, 37860, 38491, 41480, 42908, 53635, 62220, 64362, 75720, 76982, 85816, 107270, 115473, 124440, 128724, 153964, 160905, 192455, 214540, 230946, 257448, 307928, 321810, 384910, 429080, 461892, 577365, 643620, 654347, 769820, 923784, 1154730, 1287240, 1308694, 1539640, 1963041, 2309460, 2617388, 3271735, 3926082, 4618920, 5234776, 6543470, 7852164, 9815205, 13086940, 15704328, 19630410, 26173880, 39260820, 78521640]

約数ペア:

[(1, 78521640), (2, 39260820), (3, 26173880), (4, 19630410), (5, 15704328), (6, 13086940), (8, 9815205), (10, 7852164), (12, 6543470), (15, 5234776), (17, 4618920), (20, 3926082), (24, 3271735), (30, 2617388), (34, 2309460), (40, 1963041), (51, 1539640), (60, 1308694), (61, 1287240), (68, 1154730), (85, 923784), (102, 769820), (120, 654347), (122, 643620), (136, 577365), (170, 461892), (183, 429080), (204, 384910), (244, 321810), (255, 307928), (305, 257448), (340, 230946), (366, 214540), (408, 192455), (488, 160905), (510, 153964), (610, 128724), (631, 124440), (680, 115473), (732, 107270), (915, 85816), (1020, 76982), (1037, 75720), (1220, 64362), (1262, 62220), (1464, 53635), (1830, 42908), (1893, 41480), (2040, 38491), (2074, 37860), (2440, 32181), (2524, 31110), (3111, 25240), (3155, 24888), (3660, 21454), (3786, 20740), (4148, 18930), (5048, 15555), (5185, 15144), (6222, 12620), (6310, 12444), (7320, 10727), (7572, 10370), (8296, 9465)]