20385420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{461}}^1$

素因数の和:551

約数の個数: 96

約数和(自身を含む): 63334656

約数和(自身を除く): 42949236

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 67, 110, 132, 134, 165, 201, 220, 268, 330, 335, 402, 461, 660, 670, 737, 804, 922, 1005, 1340, 1383, 1474, 1844, 2010, 2211, 2305, 2766, 2948, 3685, 4020, 4422, 4610, 5071, 5532, 6915, 7370, 8844, 9220, 10142, 11055, 13830, 14740, 15213, 20284, 22110, 25355, 27660, 30426, 30887, 44220, 50710, 60852, 61774, 76065, 92661, 101420, 123548, 152130, 154435, 185322, 304260, 308870, 339757, 370644, 463305, 617740, 679514, 926610, 1019271, 1359028, 1698785, 1853220, 2038542, 3397570, 4077084, 5096355, 6795140, 10192710, 20385420]

約数ペア:

[(1, 20385420), (2, 10192710), (3, 6795140), (4, 5096355), (5, 4077084), (6, 3397570), (10, 2038542), (11, 1853220), (12, 1698785), (15, 1359028), (20, 1019271), (22, 926610), (30, 679514), (33, 617740), (44, 463305), (55, 370644), (60, 339757), (66, 308870), (67, 304260), (110, 185322), (132, 154435), (134, 152130), (165, 123548), (201, 101420), (220, 92661), (268, 76065), (330, 61774), (335, 60852), (402, 50710), (461, 44220), (660, 30887), (670, 30426), (737, 27660), (804, 25355), (922, 22110), (1005, 20284), (1340, 15213), (1383, 14740), (1474, 13830), (1844, 11055), (2010, 10142), (2211, 9220), (2305, 8844), (2766, 7370), (2948, 6915), (3685, 5532), (4020, 5071), (4422, 4610)]