19726180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:149

約数の個数: 96

約数和(自身を含む): 47496960

約数和(自身を除く): 27770780

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 37, 38, 46, 61, 74, 76, 92, 95, 115, 122, 148, 185, 190, 230, 244, 305, 370, 380, 437, 460, 610, 703, 740, 851, 874, 1159, 1220, 1403, 1406, 1702, 1748, 2185, 2257, 2318, 2806, 2812, 3404, 3515, 4255, 4370, 4514, 4636, 5612, 5795, 7015, 7030, 8510, 8740, 9028, 11285, 11590, 14030, 14060, 16169, 17020, 22570, 23180, 26657, 28060, 32338, 42883, 45140, 51911, 53314, 64676, 80845, 85766, 103822, 106628, 133285, 161690, 171532, 207644, 214415, 259555, 266570, 323380, 428830, 519110, 533140, 857660, 986309, 1038220, 1972618, 3945236, 4931545, 9863090, 19726180]

約数ペア:

[(1, 19726180), (2, 9863090), (4, 4931545), (5, 3945236), (10, 1972618), (19, 1038220), (20, 986309), (23, 857660), (37, 533140), (38, 519110), (46, 428830), (61, 323380), (74, 266570), (76, 259555), (92, 214415), (95, 207644), (115, 171532), (122, 161690), (148, 133285), (185, 106628), (190, 103822), (230, 85766), (244, 80845), (305, 64676), (370, 53314), (380, 51911), (437, 45140), (460, 42883), (610, 32338), (703, 28060), (740, 26657), (851, 23180), (874, 22570), (1159, 17020), (1220, 16169), (1403, 14060), (1406, 14030), (1702, 11590), (1748, 11285), (2185, 9028), (2257, 8740), (2318, 8510), (2806, 7030), (2812, 7015), (3404, 5795), (3515, 5612), (4255, 4636), (4370, 4514)]