19458960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{911}}^1$

素因数の和:1016

約数の個数: 80

約数和(自身を含む): 61067520

約数和(自身を除く): 41608560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 89, 120, 178, 240, 267, 356, 445, 534, 712, 890, 911, 1068, 1335, 1424, 1780, 1822, 2136, 2670, 2733, 3560, 3644, 4272, 4555, 5340, 5466, 7120, 7288, 9110, 10680, 10932, 13665, 14576, 18220, 21360, 21864, 27330, 36440, 43728, 54660, 72880, 81079, 109320, 162158, 218640, 243237, 324316, 405395, 486474, 648632, 810790, 972948, 1216185, 1297264, 1621580, 1945896, 2432370, 3243160, 3891792, 4864740, 6486320, 9729480, 19458960]

約数ペア:

[(1, 19458960), (2, 9729480), (3, 6486320), (4, 4864740), (5, 3891792), (6, 3243160), (8, 2432370), (10, 1945896), (12, 1621580), (15, 1297264), (16, 1216185), (20, 972948), (24, 810790), (30, 648632), (40, 486474), (48, 405395), (60, 324316), (80, 243237), (89, 218640), (120, 162158), (178, 109320), (240, 81079), (267, 72880), (356, 54660), (445, 43728), (534, 36440), (712, 27330), (890, 21864), (911, 21360), (1068, 18220), (1335, 14576), (1424, 13665), (1780, 10932), (1822, 10680), (2136, 9110), (2670, 7288), (2733, 7120), (3560, 5466), (3644, 5340), (4272, 4555)]