20477431390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{509}}^1\times {\mathrm{5839}}^1$

素因数の和:6421

約数の個数: 64

約数和(自身を含む): 40530067200

約数和(自身を除く): 20052635810

約数列:

[1, 2, 5, 10, 13, 26, 53, 65, 106, 130, 265, 509, 530, 689, 1018, 1378, 2545, 3445, 5090, 5839, 6617, 6890, 11678, 13234, 26977, 29195, 33085, 53954, 58390, 66170, 75907, 134885, 151814, 269770, 309467, 350701, 379535, 618934, 701402, 759070, 1547335, 1753505, 2972051, 3094670, 3507010, 4023071, 5944102, 8046142, 14860255, 20115355, 29720510, 38636663, 40230710, 77273326, 157518703, 193183315, 315037406, 386366630, 787593515, 1575187030, 2047743139, 4095486278, 10238715695, 20477431390]

約数ペア:

[(1, 20477431390), (2, 10238715695), (5, 4095486278), (10, 2047743139), (13, 1575187030), (26, 787593515), (53, 386366630), (65, 315037406), (106, 193183315), (130, 157518703), (265, 77273326), (509, 40230710), (530, 38636663), (689, 29720510), (1018, 20115355), (1378, 14860255), (2545, 8046142), (3445, 5944102), (5090, 4023071), (5839, 3507010), (6617, 3094670), (6890, 2972051), (11678, 1753505), (13234, 1547335), (26977, 759070), (29195, 701402), (33085, 618934), (53954, 379535), (58390, 350701), (66170, 309467), (75907, 269770), (134885, 151814)]