31221216

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{269}}^1$

素因数の和:329

約数の個数: 144

約数和(自身を含む): 99066240

約数和(自身を除く): 67845024

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 31, 32, 36, 39, 48, 52, 62, 72, 78, 93, 96, 104, 117, 124, 144, 156, 186, 208, 234, 248, 269, 279, 288, 312, 372, 403, 416, 468, 496, 538, 558, 624, 744, 806, 807, 936, 992, 1076, 1116, 1209, 1248, 1488, 1612, 1614, 1872, 2152, 2232, 2418, 2421, 2976, 3224, 3228, 3497, 3627, 3744, 4304, 4464, 4836, 4842, 6448, 6456, 6994, 7254, 8339, 8608, 8928, 9672, 9684, 10491, 12896, 12912, 13988, 14508, 16678, 19344, 19368, 20982, 25017, 25824, 27976, 29016, 31473, 33356, 38688, 38736, 41964, 50034, 55952, 58032, 62946, 66712, 75051, 77472, 83928, 100068, 108407, 111904, 116064, 125892, 133424, 150102, 167856, 200136, 216814, 251784, 266848, 300204, 325221, 335712, 400272, 433628, 503568, 600408, 650442, 800544, 867256, 975663, 1007136, 1200816, 1300884, 1734512, 1951326, 2401632, 2601768, 3469024, 3902652, 5203536, 7805304, 10407072, 15610608, 31221216]

約数ペア:

[(1, 31221216), (2, 15610608), (3, 10407072), (4, 7805304), (6, 5203536), (8, 3902652), (9, 3469024), (12, 2601768), (13, 2401632), (16, 1951326), (18, 1734512), (24, 1300884), (26, 1200816), (31, 1007136), (32, 975663), (36, 867256), (39, 800544), (48, 650442), (52, 600408), (62, 503568), (72, 433628), (78, 400272), (93, 335712), (96, 325221), (104, 300204), (117, 266848), (124, 251784), (144, 216814), (156, 200136), (186, 167856), (208, 150102), (234, 133424), (248, 125892), (269, 116064), (279, 111904), (288, 108407), (312, 100068), (372, 83928), (403, 77472), (416, 75051), (468, 66712), (496, 62946), (538, 58032), (558, 55952), (624, 50034), (744, 41964), (806, 38736), (807, 38688), (936, 33356), (992, 31473), (1076, 29016), (1116, 27976), (1209, 25824), (1248, 25017), (1488, 20982), (1612, 19368), (1614, 19344), (1872, 16678), (2152, 14508), (2232, 13988), (2418, 12912), (2421, 12896), (2976, 10491), (3224, 9684), (3228, 9672), (3497, 8928), (3627, 8608), (3744, 8339), (4304, 7254), (4464, 6994), (4836, 6456), (4842, 6448)]