257586648

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{577}}^1$

素因数の和:705

約数の個数: 128

約数和(自身を含む): 749088000

約数和(自身を除く): 491501352

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 19, 22, 24, 33, 38, 44, 57, 66, 76, 88, 89, 114, 132, 152, 178, 209, 228, 264, 267, 356, 418, 456, 534, 577, 627, 712, 836, 979, 1068, 1154, 1254, 1672, 1691, 1731, 1958, 2136, 2308, 2508, 2937, 3382, 3462, 3916, 4616, 5016, 5073, 5874, 6347, 6764, 6924, 7832, 10146, 10963, 11748, 12694, 13528, 13848, 18601, 19041, 20292, 21926, 23496, 25388, 32889, 37202, 38082, 40584, 43852, 50776, 51353, 55803, 65778, 74404, 76164, 87704, 102706, 111606, 120593, 131556, 148808, 152328, 154059, 205412, 223212, 241186, 263112, 308118, 361779, 410824, 446424, 482372, 564883, 616236, 723558, 964744, 975707, 1129766, 1232472, 1447116, 1694649, 1951414, 2259532, 2894232, 2927121, 3389298, 3902828, 4519064, 5854242, 6778596, 7805656, 10732777, 11708484, 13557192, 21465554, 23416968, 32198331, 42931108, 64396662, 85862216, 128793324, 257586648]

約数ペア:

[(1, 257586648), (2, 128793324), (3, 85862216), (4, 64396662), (6, 42931108), (8, 32198331), (11, 23416968), (12, 21465554), (19, 13557192), (22, 11708484), (24, 10732777), (33, 7805656), (38, 6778596), (44, 5854242), (57, 4519064), (66, 3902828), (76, 3389298), (88, 2927121), (89, 2894232), (114, 2259532), (132, 1951414), (152, 1694649), (178, 1447116), (209, 1232472), (228, 1129766), (264, 975707), (267, 964744), (356, 723558), (418, 616236), (456, 564883), (534, 482372), (577, 446424), (627, 410824), (712, 361779), (836, 308118), (979, 263112), (1068, 241186), (1154, 223212), (1254, 205412), (1672, 154059), (1691, 152328), (1731, 148808), (1958, 131556), (2136, 120593), (2308, 111606), (2508, 102706), (2937, 87704), (3382, 76164), (3462, 74404), (3916, 65778), (4616, 55803), (5016, 51353), (5073, 50776), (5874, 43852), (6347, 40584), (6764, 38082), (6924, 37202), (7832, 32889), (10146, 25388), (10963, 23496), (11748, 21926), (12694, 20292), (13528, 19041), (13848, 18601)]