16464980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{317}}^1$

素因数の和:393

約数の個数: 72

約数和(自身を含む): 41109768

約数和(自身を除く): 24644788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 53, 70, 98, 106, 140, 196, 212, 245, 265, 317, 371, 490, 530, 634, 742, 980, 1060, 1268, 1484, 1585, 1855, 2219, 2597, 3170, 3710, 4438, 5194, 6340, 7420, 8876, 10388, 11095, 12985, 15533, 16801, 22190, 25970, 31066, 33602, 44380, 51940, 62132, 67204, 77665, 84005, 117607, 155330, 168010, 235214, 310660, 336020, 470428, 588035, 823249, 1176070, 1646498, 2352140, 3292996, 4116245, 8232490, 16464980]

約数ペア:

[(1, 16464980), (2, 8232490), (4, 4116245), (5, 3292996), (7, 2352140), (10, 1646498), (14, 1176070), (20, 823249), (28, 588035), (35, 470428), (49, 336020), (53, 310660), (70, 235214), (98, 168010), (106, 155330), (140, 117607), (196, 84005), (212, 77665), (245, 67204), (265, 62132), (317, 51940), (371, 44380), (490, 33602), (530, 31066), (634, 25970), (742, 22190), (980, 16801), (1060, 15533), (1268, 12985), (1484, 11095), (1585, 10388), (1855, 8876), (2219, 7420), (2597, 6340), (3170, 5194), (3710, 4438)]