18460780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1$

素因数の和:179

約数の個数: 96

約数和(自身を含む): 45581760

約数和(自身を除く): 27120980

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 37, 38, 52, 65, 74, 76, 95, 101, 130, 148, 185, 190, 202, 247, 260, 370, 380, 404, 481, 494, 505, 703, 740, 962, 988, 1010, 1235, 1313, 1406, 1919, 1924, 2020, 2405, 2470, 2626, 2812, 3515, 3737, 3838, 4810, 4940, 5252, 6565, 7030, 7474, 7676, 9139, 9595, 9620, 13130, 14060, 14948, 18278, 18685, 19190, 24947, 26260, 36556, 37370, 38380, 45695, 48581, 49894, 71003, 74740, 91390, 97162, 99788, 124735, 142006, 182780, 194324, 242905, 249470, 284012, 355015, 485810, 498940, 710030, 923039, 971620, 1420060, 1846078, 3692156, 4615195, 9230390, 18460780]

約数ペア:

[(1, 18460780), (2, 9230390), (4, 4615195), (5, 3692156), (10, 1846078), (13, 1420060), (19, 971620), (20, 923039), (26, 710030), (37, 498940), (38, 485810), (52, 355015), (65, 284012), (74, 249470), (76, 242905), (95, 194324), (101, 182780), (130, 142006), (148, 124735), (185, 99788), (190, 97162), (202, 91390), (247, 74740), (260, 71003), (370, 49894), (380, 48581), (404, 45695), (481, 38380), (494, 37370), (505, 36556), (703, 26260), (740, 24947), (962, 19190), (988, 18685), (1010, 18278), (1235, 14948), (1313, 14060), (1406, 13130), (1919, 9620), (1924, 9595), (2020, 9139), (2405, 7676), (2470, 7474), (2626, 7030), (2812, 6565), (3515, 5252), (3737, 4940), (3838, 4810)]