16200380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{271}}^1$

素因数の和:355

約数の個数: 72

約数和(自身を含む): 40372416

約数和(自身を除く): 24172036

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 61, 70, 98, 122, 140, 196, 244, 245, 271, 305, 427, 490, 542, 610, 854, 980, 1084, 1220, 1355, 1708, 1897, 2135, 2710, 2989, 3794, 4270, 5420, 5978, 7588, 8540, 9485, 11956, 13279, 14945, 16531, 18970, 26558, 29890, 33062, 37940, 53116, 59780, 66124, 66395, 82655, 115717, 132790, 165310, 231434, 265580, 330620, 462868, 578585, 810019, 1157170, 1620038, 2314340, 3240076, 4050095, 8100190, 16200380]

約数ペア:

[(1, 16200380), (2, 8100190), (4, 4050095), (5, 3240076), (7, 2314340), (10, 1620038), (14, 1157170), (20, 810019), (28, 578585), (35, 462868), (49, 330620), (61, 265580), (70, 231434), (98, 165310), (122, 132790), (140, 115717), (196, 82655), (244, 66395), (245, 66124), (271, 59780), (305, 53116), (427, 37940), (490, 33062), (542, 29890), (610, 26558), (854, 18970), (980, 16531), (1084, 14945), (1220, 13279), (1355, 11956), (1708, 9485), (1897, 8540), (2135, 7588), (2710, 5978), (2989, 5420), (3794, 4270)]