40199680

素因数分解:

$2^9\times 5^1\times {\mathrm{41}}^1\times {\mathrm{383}}^1$

素因数の和:447

約数の個数: 80

約数和(自身を含む): 98993664

約数和(自身を除く): 58793984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 256, 320, 328, 383, 410, 512, 640, 656, 766, 820, 1280, 1312, 1532, 1640, 1915, 2560, 2624, 3064, 3280, 3830, 5248, 6128, 6560, 7660, 10496, 12256, 13120, 15320, 15703, 20992, 24512, 26240, 30640, 31406, 49024, 52480, 61280, 62812, 78515, 98048, 104960, 122560, 125624, 157030, 196096, 245120, 251248, 314060, 490240, 502496, 628120, 980480, 1004992, 1256240, 2009984, 2512480, 4019968, 5024960, 8039936, 10049920, 20099840, 40199680]

約数ペア:

[(1, 40199680), (2, 20099840), (4, 10049920), (5, 8039936), (8, 5024960), (10, 4019968), (16, 2512480), (20, 2009984), (32, 1256240), (40, 1004992), (41, 980480), (64, 628120), (80, 502496), (82, 490240), (128, 314060), (160, 251248), (164, 245120), (205, 196096), (256, 157030), (320, 125624), (328, 122560), (383, 104960), (410, 98048), (512, 78515), (640, 62812), (656, 61280), (766, 52480), (820, 49024), (1280, 31406), (1312, 30640), (1532, 26240), (1640, 24512), (1915, 20992), (2560, 15703), (2624, 15320), (3064, 13120), (3280, 12256), (3830, 10496), (5248, 7660), (6128, 6560)]