256543164

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{3461}}^1$

素因数の和:3571

約数の個数: 72

約数和(自身を含む): 680490720

約数和(自身を除く): 423947556

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 71, 87, 116, 142, 174, 213, 261, 284, 348, 426, 522, 639, 852, 1044, 1278, 2059, 2556, 3461, 4118, 6177, 6922, 8236, 10383, 12354, 13844, 18531, 20766, 24708, 31149, 37062, 41532, 62298, 74124, 100369, 124596, 200738, 245731, 301107, 401476, 491462, 602214, 737193, 903321, 982924, 1204428, 1474386, 1806642, 2211579, 2948772, 3613284, 4423158, 7126199, 8846316, 14252398, 21378597, 28504796, 42757194, 64135791, 85514388, 128271582, 256543164]

約数ペア:

[(1, 256543164), (2, 128271582), (3, 85514388), (4, 64135791), (6, 42757194), (9, 28504796), (12, 21378597), (18, 14252398), (29, 8846316), (36, 7126199), (58, 4423158), (71, 3613284), (87, 2948772), (116, 2211579), (142, 1806642), (174, 1474386), (213, 1204428), (261, 982924), (284, 903321), (348, 737193), (426, 602214), (522, 491462), (639, 401476), (852, 301107), (1044, 245731), (1278, 200738), (2059, 124596), (2556, 100369), (3461, 74124), (4118, 62298), (6177, 41532), (6922, 37062), (8236, 31149), (10383, 24708), (12354, 20766), (13844, 18531)]