40689920

素因数分解:

$2^8\times 5^1\times {\mathrm{83}}^1\times {\mathrm{383}}^1$

素因数の和:487

約数の個数: 72

約数和(自身を含む): 98896896

約数和(自身を除く): 58206976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 83, 128, 160, 166, 256, 320, 332, 383, 415, 640, 664, 766, 830, 1280, 1328, 1532, 1660, 1915, 2656, 3064, 3320, 3830, 5312, 6128, 6640, 7660, 10624, 12256, 13280, 15320, 21248, 24512, 26560, 30640, 31789, 49024, 53120, 61280, 63578, 98048, 106240, 122560, 127156, 158945, 245120, 254312, 317890, 490240, 508624, 635780, 1017248, 1271560, 2034496, 2543120, 4068992, 5086240, 8137984, 10172480, 20344960, 40689920]

約数ペア:

[(1, 40689920), (2, 20344960), (4, 10172480), (5, 8137984), (8, 5086240), (10, 4068992), (16, 2543120), (20, 2034496), (32, 1271560), (40, 1017248), (64, 635780), (80, 508624), (83, 490240), (128, 317890), (160, 254312), (166, 245120), (256, 158945), (320, 127156), (332, 122560), (383, 106240), (415, 98048), (640, 63578), (664, 61280), (766, 53120), (830, 49024), (1280, 31789), (1328, 30640), (1532, 26560), (1660, 24512), (1915, 21248), (2656, 15320), (3064, 13280), (3320, 12256), (3830, 10624), (5312, 7660), (6128, 6640)]