81943740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{439}}^1$

素因数の和:532

約数の個数: 144

約数和(自身を含む): 268107840

約数和(自身を除く): 186164100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 61, 68, 85, 90, 102, 122, 153, 170, 180, 183, 204, 244, 255, 305, 306, 340, 366, 439, 510, 549, 610, 612, 732, 765, 878, 915, 1020, 1037, 1098, 1220, 1317, 1530, 1756, 1830, 2074, 2195, 2196, 2634, 2745, 3060, 3111, 3660, 3951, 4148, 4390, 5185, 5268, 5490, 6222, 6585, 7463, 7902, 8780, 9333, 10370, 10980, 12444, 13170, 14926, 15555, 15804, 18666, 19755, 20740, 22389, 26340, 26779, 29852, 31110, 37315, 37332, 39510, 44778, 46665, 53558, 62220, 67167, 74630, 79020, 80337, 89556, 93330, 107116, 111945, 133895, 134334, 149260, 160674, 186660, 223890, 241011, 267790, 268668, 321348, 335835, 401685, 447780, 455243, 482022, 535580, 671670, 803370, 910486, 964044, 1205055, 1343340, 1365729, 1606740, 1820972, 2276215, 2410110, 2731458, 4097187, 4552430, 4820220, 5462916, 6828645, 8194374, 9104860, 13657290, 16388748, 20485935, 27314580, 40971870, 81943740]

約数ペア:

[(1, 81943740), (2, 40971870), (3, 27314580), (4, 20485935), (5, 16388748), (6, 13657290), (9, 9104860), (10, 8194374), (12, 6828645), (15, 5462916), (17, 4820220), (18, 4552430), (20, 4097187), (30, 2731458), (34, 2410110), (36, 2276215), (45, 1820972), (51, 1606740), (60, 1365729), (61, 1343340), (68, 1205055), (85, 964044), (90, 910486), (102, 803370), (122, 671670), (153, 535580), (170, 482022), (180, 455243), (183, 447780), (204, 401685), (244, 335835), (255, 321348), (305, 268668), (306, 267790), (340, 241011), (366, 223890), (439, 186660), (510, 160674), (549, 149260), (610, 134334), (612, 133895), (732, 111945), (765, 107116), (878, 93330), (915, 89556), (1020, 80337), (1037, 79020), (1098, 74630), (1220, 67167), (1317, 62220), (1530, 53558), (1756, 46665), (1830, 44778), (2074, 39510), (2195, 37332), (2196, 37315), (2634, 31110), (2745, 29852), (3060, 26779), (3111, 26340), (3660, 22389), (3951, 20740), (4148, 19755), (4390, 18666), (5185, 15804), (5268, 15555), (5490, 14926), (6222, 13170), (6585, 12444), (7463, 10980), (7902, 10370), (8780, 9333)]