17921920

素因数分解:

$2^7\times 5^1\times {\mathrm{41}}^1\times {\mathrm{683}}^1$

素因数の和:743

約数の個数: 64

約数和(自身を含む): 43953840

約数和(自身を除く): 26031920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 320, 328, 410, 640, 656, 683, 820, 1312, 1366, 1640, 2624, 2732, 3280, 3415, 5248, 5464, 6560, 6830, 10928, 13120, 13660, 21856, 26240, 27320, 28003, 43712, 54640, 56006, 87424, 109280, 112012, 140015, 218560, 224024, 280030, 437120, 448048, 560060, 896096, 1120120, 1792192, 2240240, 3584384, 4480480, 8960960, 17921920]

約数ペア:

[(1, 17921920), (2, 8960960), (4, 4480480), (5, 3584384), (8, 2240240), (10, 1792192), (16, 1120120), (20, 896096), (32, 560060), (40, 448048), (41, 437120), (64, 280030), (80, 224024), (82, 218560), (128, 140015), (160, 112012), (164, 109280), (205, 87424), (320, 56006), (328, 54640), (410, 43712), (640, 28003), (656, 27320), (683, 26240), (820, 21856), (1312, 13660), (1366, 13120), (1640, 10928), (2624, 6830), (2732, 6560), (3280, 5464), (3415, 5248)]