19690660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:157

約数の個数: 96

約数和(自身を含む): 48263040

約数和(自身を除く): 28572380

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 41, 44, 55, 59, 74, 82, 110, 118, 148, 164, 185, 205, 220, 236, 295, 370, 407, 410, 451, 590, 649, 740, 814, 820, 902, 1180, 1298, 1517, 1628, 1804, 2035, 2183, 2255, 2419, 2596, 3034, 3245, 4070, 4366, 4510, 4838, 6068, 6490, 7585, 8140, 8732, 9020, 9676, 10915, 12095, 12980, 15170, 16687, 21830, 24013, 24190, 26609, 30340, 33374, 43660, 48026, 48380, 53218, 66748, 83435, 89503, 96052, 106436, 120065, 133045, 166870, 179006, 240130, 266090, 333740, 358012, 447515, 480260, 532180, 895030, 984533, 1790060, 1969066, 3938132, 4922665, 9845330, 19690660]

約数ペア:

[(1, 19690660), (2, 9845330), (4, 4922665), (5, 3938132), (10, 1969066), (11, 1790060), (20, 984533), (22, 895030), (37, 532180), (41, 480260), (44, 447515), (55, 358012), (59, 333740), (74, 266090), (82, 240130), (110, 179006), (118, 166870), (148, 133045), (164, 120065), (185, 106436), (205, 96052), (220, 89503), (236, 83435), (295, 66748), (370, 53218), (407, 48380), (410, 48026), (451, 43660), (590, 33374), (649, 30340), (740, 26609), (814, 24190), (820, 24013), (902, 21830), (1180, 16687), (1298, 15170), (1517, 12980), (1628, 12095), (1804, 10915), (2035, 9676), (2183, 9020), (2255, 8732), (2419, 8140), (2596, 7585), (3034, 6490), (3245, 6068), (4070, 4838), (4366, 4510)]