90810880

素因数分解:

$2^9\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1867}}^1$

素因数の和:1909

約数の個数: 80

約数和(自身を含む): 229315680

約数和(自身を除く): 138504800

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 512, 608, 640, 760, 1216, 1280, 1520, 1867, 2432, 2560, 3040, 3734, 4864, 6080, 7468, 9335, 9728, 12160, 14936, 18670, 24320, 29872, 35473, 37340, 48640, 59744, 70946, 74680, 119488, 141892, 149360, 177365, 238976, 283784, 298720, 354730, 477952, 567568, 597440, 709460, 955904, 1135136, 1194880, 1418920, 2270272, 2389760, 2837840, 4540544, 4779520, 5675680, 9081088, 11351360, 18162176, 22702720, 45405440, 90810880]

約数ペア:

[(1, 90810880), (2, 45405440), (4, 22702720), (5, 18162176), (8, 11351360), (10, 9081088), (16, 5675680), (19, 4779520), (20, 4540544), (32, 2837840), (38, 2389760), (40, 2270272), (64, 1418920), (76, 1194880), (80, 1135136), (95, 955904), (128, 709460), (152, 597440), (160, 567568), (190, 477952), (256, 354730), (304, 298720), (320, 283784), (380, 238976), (512, 177365), (608, 149360), (640, 141892), (760, 119488), (1216, 74680), (1280, 70946), (1520, 59744), (1867, 48640), (2432, 37340), (2560, 35473), (3040, 29872), (3734, 24320), (4864, 18670), (6080, 14936), (7468, 12160), (9335, 9728)]