77658880

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^2\times {\mathrm{359}}^1$

素因数の和:406

約数の個数: 108

約数和(自身を含む): 201988080

約数和(自身を除く): 124329200

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 169, 208, 256, 260, 320, 338, 359, 416, 520, 640, 676, 718, 832, 845, 1040, 1280, 1352, 1436, 1664, 1690, 1795, 2080, 2704, 2872, 3328, 3380, 3590, 4160, 4667, 5408, 5744, 6760, 7180, 8320, 9334, 10816, 11488, 13520, 14360, 16640, 18668, 21632, 22976, 23335, 27040, 28720, 37336, 43264, 45952, 46670, 54080, 57440, 60671, 74672, 91904, 93340, 108160, 114880, 121342, 149344, 186680, 216320, 229760, 242684, 298688, 303355, 373360, 459520, 485368, 597376, 606710, 746720, 970736, 1194752, 1213420, 1493440, 1941472, 2426840, 2986880, 3882944, 4853680, 5973760, 7765888, 9707360, 15531776, 19414720, 38829440, 77658880]

約数ペア:

[(1, 77658880), (2, 38829440), (4, 19414720), (5, 15531776), (8, 9707360), (10, 7765888), (13, 5973760), (16, 4853680), (20, 3882944), (26, 2986880), (32, 2426840), (40, 1941472), (52, 1493440), (64, 1213420), (65, 1194752), (80, 970736), (104, 746720), (128, 606710), (130, 597376), (160, 485368), (169, 459520), (208, 373360), (256, 303355), (260, 298688), (320, 242684), (338, 229760), (359, 216320), (416, 186680), (520, 149344), (640, 121342), (676, 114880), (718, 108160), (832, 93340), (845, 91904), (1040, 74672), (1280, 60671), (1352, 57440), (1436, 54080), (1664, 46670), (1690, 45952), (1795, 43264), (2080, 37336), (2704, 28720), (2872, 27040), (3328, 23335), (3380, 22976), (3590, 21632), (4160, 18668), (4667, 16640), (5408, 14360), (5744, 13520), (6760, 11488), (7180, 10816), (8320, 9334)]