1984144640

素因数分解:

$2^8\times 5^1\times {\mathrm{89}}^1\times {\mathrm{17417}}^1$

素因数の和:17527

約数の個数: 72

約数和(自身を含む): 4806322920

約数和(自身を除く): 2822178280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 128, 160, 178, 256, 320, 356, 445, 640, 712, 890, 1280, 1424, 1780, 2848, 3560, 5696, 7120, 11392, 14240, 17417, 22784, 28480, 34834, 56960, 69668, 87085, 113920, 139336, 174170, 278672, 348340, 557344, 696680, 1114688, 1393360, 1550113, 2229376, 2786720, 3100226, 4458752, 5573440, 6200452, 7750565, 11146880, 12400904, 15501130, 22293760, 24801808, 31002260, 49603616, 62004520, 99207232, 124009040, 198414464, 248018080, 396828928, 496036160, 992072320, 1984144640]

約数ペア:

[(1, 1984144640), (2, 992072320), (4, 496036160), (5, 396828928), (8, 248018080), (10, 198414464), (16, 124009040), (20, 99207232), (32, 62004520), (40, 49603616), (64, 31002260), (80, 24801808), (89, 22293760), (128, 15501130), (160, 12400904), (178, 11146880), (256, 7750565), (320, 6200452), (356, 5573440), (445, 4458752), (640, 3100226), (712, 2786720), (890, 2229376), (1280, 1550113), (1424, 1393360), (1780, 1114688), (2848, 696680), (3560, 557344), (5696, 348340), (7120, 278672), (11392, 174170), (14240, 139336), (17417, 113920), (22784, 87085), (28480, 69668), (34834, 56960)]