128427520

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1$

素因数の和:280

約数の個数: 160

約数和(自身を含む): 352664928

約数和(自身を除く): 224237408

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 32, 34, 40, 52, 64, 65, 68, 80, 85, 104, 128, 130, 136, 160, 170, 208, 221, 227, 256, 260, 272, 320, 340, 416, 442, 454, 512, 520, 544, 640, 680, 832, 884, 908, 1040, 1088, 1105, 1135, 1280, 1360, 1664, 1768, 1816, 2080, 2176, 2210, 2270, 2560, 2720, 2951, 3328, 3536, 3632, 3859, 4160, 4352, 4420, 4540, 5440, 5902, 6656, 7072, 7264, 7718, 8320, 8704, 8840, 9080, 10880, 11804, 14144, 14528, 14755, 15436, 16640, 17680, 18160, 19295, 21760, 23608, 28288, 29056, 29510, 30872, 33280, 35360, 36320, 38590, 43520, 47216, 50167, 56576, 58112, 59020, 61744, 70720, 72640, 77180, 94432, 100334, 113152, 116224, 118040, 123488, 141440, 145280, 154360, 188864, 200668, 236080, 246976, 250835, 282880, 290560, 308720, 377728, 401336, 472160, 493952, 501670, 565760, 581120, 617440, 755456, 802672, 944320, 987904, 1003340, 1234880, 1510912, 1605344, 1888640, 1975808, 2006680, 2469760, 3210688, 3777280, 4013360, 4939520, 6421376, 7554560, 8026720, 9879040, 12842752, 16053440, 25685504, 32106880, 64213760, 128427520]

約数ペア:

[(1, 128427520), (2, 64213760), (4, 32106880), (5, 25685504), (8, 16053440), (10, 12842752), (13, 9879040), (16, 8026720), (17, 7554560), (20, 6421376), (26, 4939520), (32, 4013360), (34, 3777280), (40, 3210688), (52, 2469760), (64, 2006680), (65, 1975808), (68, 1888640), (80, 1605344), (85, 1510912), (104, 1234880), (128, 1003340), (130, 987904), (136, 944320), (160, 802672), (170, 755456), (208, 617440), (221, 581120), (227, 565760), (256, 501670), (260, 493952), (272, 472160), (320, 401336), (340, 377728), (416, 308720), (442, 290560), (454, 282880), (512, 250835), (520, 246976), (544, 236080), (640, 200668), (680, 188864), (832, 154360), (884, 145280), (908, 141440), (1040, 123488), (1088, 118040), (1105, 116224), (1135, 113152), (1280, 100334), (1360, 94432), (1664, 77180), (1768, 72640), (1816, 70720), (2080, 61744), (2176, 59020), (2210, 58112), (2270, 56576), (2560, 50167), (2720, 47216), (2951, 43520), (3328, 38590), (3536, 36320), (3632, 35360), (3859, 33280), (4160, 30872), (4352, 29510), (4420, 29056), (4540, 28288), (5440, 23608), (5902, 21760), (6656, 19295), (7072, 18160), (7264, 17680), (7718, 16640), (8320, 15436), (8704, 14755), (8840, 14528), (9080, 14144), (10880, 11804)]