861976420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{607}}^1$

素因数の和:773

約数の個数: 96

約数和(自身を含む): 1979550720

約数和(自身を除く): 1117574300

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 74, 76, 95, 101, 148, 185, 190, 202, 370, 380, 404, 505, 607, 703, 740, 1010, 1214, 1406, 1919, 2020, 2428, 2812, 3035, 3515, 3737, 3838, 6070, 7030, 7474, 7676, 9595, 11533, 12140, 14060, 14948, 18685, 19190, 22459, 23066, 37370, 38380, 44918, 46132, 57665, 61307, 71003, 74740, 89836, 112295, 115330, 122614, 142006, 224590, 230660, 245228, 284012, 306535, 355015, 426721, 449180, 613070, 710030, 853442, 1164833, 1226140, 1420060, 1706884, 2133605, 2268359, 2329666, 4267210, 4536718, 4659332, 5824165, 8534420, 9073436, 11341795, 11648330, 22683590, 23296660, 43098821, 45367180, 86197642, 172395284, 215494105, 430988210, 861976420]

約数ペア:

[(1, 861976420), (2, 430988210), (4, 215494105), (5, 172395284), (10, 86197642), (19, 45367180), (20, 43098821), (37, 23296660), (38, 22683590), (74, 11648330), (76, 11341795), (95, 9073436), (101, 8534420), (148, 5824165), (185, 4659332), (190, 4536718), (202, 4267210), (370, 2329666), (380, 2268359), (404, 2133605), (505, 1706884), (607, 1420060), (703, 1226140), (740, 1164833), (1010, 853442), (1214, 710030), (1406, 613070), (1919, 449180), (2020, 426721), (2428, 355015), (2812, 306535), (3035, 284012), (3515, 245228), (3737, 230660), (3838, 224590), (6070, 142006), (7030, 122614), (7474, 115330), (7676, 112295), (9595, 89836), (11533, 74740), (12140, 71003), (14060, 61307), (14948, 57665), (18685, 46132), (19190, 44918), (22459, 38380), (23066, 37370)]