19825540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:217

約数の個数: 96

約数和(自身を含む): 51093504

約数和(自身を除く): 31267964

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 47, 70, 92, 94, 115, 131, 140, 161, 188, 230, 235, 262, 322, 329, 460, 470, 524, 644, 655, 658, 805, 917, 940, 1081, 1310, 1316, 1610, 1645, 1834, 2162, 2620, 3013, 3220, 3290, 3668, 4324, 4585, 5405, 6026, 6157, 6580, 7567, 9170, 10810, 12052, 12314, 15065, 15134, 18340, 21091, 21620, 24628, 30130, 30268, 30785, 37835, 42182, 43099, 60260, 61570, 75670, 84364, 86198, 105455, 123140, 141611, 151340, 172396, 210910, 215495, 283222, 421820, 430990, 566444, 708055, 861980, 991277, 1416110, 1982554, 2832220, 3965108, 4956385, 9912770, 19825540]

約数ペア:

[(1, 19825540), (2, 9912770), (4, 4956385), (5, 3965108), (7, 2832220), (10, 1982554), (14, 1416110), (20, 991277), (23, 861980), (28, 708055), (35, 566444), (46, 430990), (47, 421820), (70, 283222), (92, 215495), (94, 210910), (115, 172396), (131, 151340), (140, 141611), (161, 123140), (188, 105455), (230, 86198), (235, 84364), (262, 75670), (322, 61570), (329, 60260), (460, 43099), (470, 42182), (524, 37835), (644, 30785), (655, 30268), (658, 30130), (805, 24628), (917, 21620), (940, 21091), (1081, 18340), (1310, 15134), (1316, 15065), (1610, 12314), (1645, 12052), (1834, 10810), (2162, 9170), (2620, 7567), (3013, 6580), (3220, 6157), (3290, 6026), (3668, 5405), (4324, 4585)]