81475254

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1$

素因数の和:475

約数の個数: 128

約数和(自身を含む): 226713600

約数和(自身を除く): 145238346

約数列:

[1, 2, 3, 6, 7, 9, 14, 17, 18, 21, 27, 31, 34, 42, 51, 54, 62, 63, 93, 102, 119, 126, 153, 186, 189, 217, 238, 279, 306, 357, 378, 409, 434, 459, 527, 558, 651, 714, 818, 837, 918, 1054, 1071, 1227, 1302, 1581, 1674, 1953, 2142, 2454, 2863, 3162, 3213, 3681, 3689, 3906, 4743, 5726, 5859, 6426, 6953, 7362, 7378, 8589, 9486, 11043, 11067, 11718, 12679, 13906, 14229, 17178, 20859, 22086, 22134, 25358, 25767, 28458, 33201, 38037, 41718, 48671, 51534, 62577, 66402, 76074, 77301, 88753, 97342, 99603, 114111, 125154, 146013, 154602, 177506, 187731, 199206, 215543, 228222, 266259, 292026, 342333, 375462, 431086, 438039, 532518, 646629, 684666, 798777, 876078, 1293258, 1314117, 1508801, 1597554, 1939887, 2396331, 2628234, 3017602, 3879774, 4526403, 4792662, 5819661, 9052806, 11639322, 13579209, 27158418, 40737627, 81475254]

約数ペア:

[(1, 81475254), (2, 40737627), (3, 27158418), (6, 13579209), (7, 11639322), (9, 9052806), (14, 5819661), (17, 4792662), (18, 4526403), (21, 3879774), (27, 3017602), (31, 2628234), (34, 2396331), (42, 1939887), (51, 1597554), (54, 1508801), (62, 1314117), (63, 1293258), (93, 876078), (102, 798777), (119, 684666), (126, 646629), (153, 532518), (186, 438039), (189, 431086), (217, 375462), (238, 342333), (279, 292026), (306, 266259), (357, 228222), (378, 215543), (409, 199206), (434, 187731), (459, 177506), (527, 154602), (558, 146013), (651, 125154), (714, 114111), (818, 99603), (837, 97342), (918, 88753), (1054, 77301), (1071, 76074), (1227, 66402), (1302, 62577), (1581, 51534), (1674, 48671), (1953, 41718), (2142, 38037), (2454, 33201), (2863, 28458), (3162, 25767), (3213, 25358), (3681, 22134), (3689, 22086), (3906, 20859), (4743, 17178), (5726, 14229), (5859, 13906), (6426, 12679), (6953, 11718), (7362, 11067), (7378, 11043), (8589, 9486)]