221139940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{9811}}^1$

素因数の和:9857

約数の個数: 72

約数和(自身を含む): 563758272

約数和(自身を除く): 342618332

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 92, 98, 115, 140, 161, 196, 230, 245, 322, 460, 490, 644, 805, 980, 1127, 1610, 2254, 3220, 4508, 5635, 9811, 11270, 19622, 22540, 39244, 49055, 68677, 98110, 137354, 196220, 225653, 274708, 343385, 451306, 480739, 686770, 902612, 961478, 1128265, 1373540, 1579571, 1922956, 2256530, 2403695, 3159142, 4513060, 4807390, 6318284, 7897855, 9614780, 11056997, 15795710, 22113994, 31591420, 44227988, 55284985, 110569970, 221139940]

約数ペア:

[(1, 221139940), (2, 110569970), (4, 55284985), (5, 44227988), (7, 31591420), (10, 22113994), (14, 15795710), (20, 11056997), (23, 9614780), (28, 7897855), (35, 6318284), (46, 4807390), (49, 4513060), (70, 3159142), (92, 2403695), (98, 2256530), (115, 1922956), (140, 1579571), (161, 1373540), (196, 1128265), (230, 961478), (245, 902612), (322, 686770), (460, 480739), (490, 451306), (644, 343385), (805, 274708), (980, 225653), (1127, 196220), (1610, 137354), (2254, 98110), (3220, 68677), (4508, 49055), (5635, 39244), (9811, 22540), (11270, 19622)]