138355840

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{347}}^1$

素因数の和:462

約数の個数: 128

約数和(自身を含む): 383356800

約数和(自身を除く): 245000960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 89, 112, 128, 140, 160, 178, 224, 280, 320, 347, 356, 445, 448, 560, 623, 640, 694, 712, 890, 896, 1120, 1246, 1388, 1424, 1735, 1780, 2240, 2429, 2492, 2776, 2848, 3115, 3470, 3560, 4480, 4858, 4984, 5552, 5696, 6230, 6940, 7120, 9716, 9968, 11104, 11392, 12145, 12460, 13880, 14240, 19432, 19936, 22208, 24290, 24920, 27760, 28480, 30883, 38864, 39872, 44416, 48580, 49840, 55520, 56960, 61766, 77728, 79744, 97160, 99680, 111040, 123532, 154415, 155456, 194320, 199360, 216181, 222080, 247064, 308830, 310912, 388640, 398720, 432362, 494128, 617660, 777280, 864724, 988256, 1080905, 1235320, 1554560, 1729448, 1976512, 2161810, 2470640, 3458896, 3953024, 4323620, 4941280, 6917792, 8647240, 9882560, 13835584, 17294480, 19765120, 27671168, 34588960, 69177920, 138355840]

約数ペア:

[(1, 138355840), (2, 69177920), (4, 34588960), (5, 27671168), (7, 19765120), (8, 17294480), (10, 13835584), (14, 9882560), (16, 8647240), (20, 6917792), (28, 4941280), (32, 4323620), (35, 3953024), (40, 3458896), (56, 2470640), (64, 2161810), (70, 1976512), (80, 1729448), (89, 1554560), (112, 1235320), (128, 1080905), (140, 988256), (160, 864724), (178, 777280), (224, 617660), (280, 494128), (320, 432362), (347, 398720), (356, 388640), (445, 310912), (448, 308830), (560, 247064), (623, 222080), (640, 216181), (694, 199360), (712, 194320), (890, 155456), (896, 154415), (1120, 123532), (1246, 111040), (1388, 99680), (1424, 97160), (1735, 79744), (1780, 77728), (2240, 61766), (2429, 56960), (2492, 55520), (2776, 49840), (2848, 48580), (3115, 44416), (3470, 39872), (3560, 38864), (4480, 30883), (4858, 28480), (4984, 27760), (5552, 24920), (5696, 24290), (6230, 22208), (6940, 19936), (7120, 19432), (9716, 14240), (9968, 13880), (11104, 12460), (11392, 12145)]