31339360

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1$

素因数の和:121

約数の個数: 144

約数和(自身を含む): 85775760

約数和(自身を除く): 54436400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 32, 38, 40, 52, 61, 65, 76, 80, 95, 104, 122, 130, 152, 160, 169, 190, 208, 244, 247, 260, 304, 305, 338, 380, 416, 488, 494, 520, 608, 610, 676, 760, 793, 845, 976, 988, 1040, 1159, 1220, 1235, 1352, 1520, 1586, 1690, 1952, 1976, 2080, 2318, 2440, 2470, 2704, 3040, 3172, 3211, 3380, 3952, 3965, 4636, 4880, 4940, 5408, 5795, 6344, 6422, 6760, 7904, 7930, 9272, 9760, 9880, 10309, 11590, 12688, 12844, 13520, 15067, 15860, 16055, 18544, 19760, 20618, 23180, 25376, 25688, 27040, 30134, 31720, 32110, 37088, 39520, 41236, 46360, 51376, 51545, 60268, 63440, 64220, 75335, 82472, 92720, 102752, 103090, 120536, 126880, 128440, 150670, 164944, 185440, 195871, 206180, 241072, 256880, 301340, 329888, 391742, 412360, 482144, 513760, 602680, 783484, 824720, 979355, 1205360, 1566968, 1649440, 1958710, 2410720, 3133936, 3917420, 6267872, 7834840, 15669680, 31339360]

約数ペア:

[(1, 31339360), (2, 15669680), (4, 7834840), (5, 6267872), (8, 3917420), (10, 3133936), (13, 2410720), (16, 1958710), (19, 1649440), (20, 1566968), (26, 1205360), (32, 979355), (38, 824720), (40, 783484), (52, 602680), (61, 513760), (65, 482144), (76, 412360), (80, 391742), (95, 329888), (104, 301340), (122, 256880), (130, 241072), (152, 206180), (160, 195871), (169, 185440), (190, 164944), (208, 150670), (244, 128440), (247, 126880), (260, 120536), (304, 103090), (305, 102752), (338, 92720), (380, 82472), (416, 75335), (488, 64220), (494, 63440), (520, 60268), (608, 51545), (610, 51376), (676, 46360), (760, 41236), (793, 39520), (845, 37088), (976, 32110), (988, 31720), (1040, 30134), (1159, 27040), (1220, 25688), (1235, 25376), (1352, 23180), (1520, 20618), (1586, 19760), (1690, 18544), (1952, 16055), (1976, 15860), (2080, 15067), (2318, 13520), (2440, 12844), (2470, 12688), (2704, 11590), (3040, 10309), (3172, 9880), (3211, 9760), (3380, 9272), (3952, 7930), (3965, 7904), (4636, 6760), (4880, 6422), (4940, 6344), (5408, 5795)]