201994660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{3889}}^1$

素因数の和:3965

約数の個数: 72

約数和(自身を含む): 502883640

約数和(自身を除く): 300888980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 53, 70, 98, 106, 140, 196, 212, 245, 265, 371, 490, 530, 742, 980, 1060, 1484, 1855, 2597, 3710, 3889, 5194, 7420, 7778, 10388, 12985, 15556, 19445, 25970, 27223, 38890, 51940, 54446, 77780, 108892, 136115, 190561, 206117, 272230, 381122, 412234, 544460, 762244, 824468, 952805, 1030585, 1442819, 1905610, 2061170, 2885638, 3811220, 4122340, 5771276, 7214095, 10099733, 14428190, 20199466, 28856380, 40398932, 50498665, 100997330, 201994660]

約数ペア:

[(1, 201994660), (2, 100997330), (4, 50498665), (5, 40398932), (7, 28856380), (10, 20199466), (14, 14428190), (20, 10099733), (28, 7214095), (35, 5771276), (49, 4122340), (53, 3811220), (70, 2885638), (98, 2061170), (106, 1905610), (140, 1442819), (196, 1030585), (212, 952805), (245, 824468), (265, 762244), (371, 544460), (490, 412234), (530, 381122), (742, 272230), (980, 206117), (1060, 190561), (1484, 136115), (1855, 108892), (2597, 77780), (3710, 54446), (3889, 51940), (5194, 38890), (7420, 27223), (7778, 25970), (10388, 19445), (12985, 15556)]