215348540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:180

約数の個数: 144

約数和(自身を含む): 535719744

約数和(自身を除く): 320371204

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 53, 55, 73, 92, 106, 110, 115, 121, 146, 212, 220, 230, 242, 253, 265, 292, 365, 460, 484, 506, 530, 583, 605, 730, 803, 1012, 1060, 1166, 1210, 1219, 1265, 1460, 1606, 1679, 2332, 2420, 2438, 2530, 2783, 2915, 3212, 3358, 3869, 4015, 4876, 5060, 5566, 5830, 6095, 6413, 6716, 7738, 8030, 8395, 8833, 11132, 11660, 12190, 12826, 13409, 13915, 15476, 16060, 16790, 17666, 18469, 19345, 24380, 25652, 26818, 27830, 32065, 33580, 35332, 36938, 38690, 42559, 44165, 53636, 55660, 64130, 67045, 73876, 77380, 85118, 88330, 88987, 92345, 128260, 134090, 147499, 170236, 176660, 177974, 184690, 203159, 212795, 268180, 294998, 355948, 369380, 406318, 425590, 444935, 468149, 589996, 737495, 812636, 851180, 889870, 936298, 978857, 1015795, 1474990, 1779740, 1872596, 1957714, 2031590, 2340745, 2949980, 3915428, 4063180, 4681490, 4894285, 9362980, 9788570, 10767427, 19577140, 21534854, 43069708, 53837135, 107674270, 215348540]

約数ペア:

[(1, 215348540), (2, 107674270), (4, 53837135), (5, 43069708), (10, 21534854), (11, 19577140), (20, 10767427), (22, 9788570), (23, 9362980), (44, 4894285), (46, 4681490), (53, 4063180), (55, 3915428), (73, 2949980), (92, 2340745), (106, 2031590), (110, 1957714), (115, 1872596), (121, 1779740), (146, 1474990), (212, 1015795), (220, 978857), (230, 936298), (242, 889870), (253, 851180), (265, 812636), (292, 737495), (365, 589996), (460, 468149), (484, 444935), (506, 425590), (530, 406318), (583, 369380), (605, 355948), (730, 294998), (803, 268180), (1012, 212795), (1060, 203159), (1166, 184690), (1210, 177974), (1219, 176660), (1265, 170236), (1460, 147499), (1606, 134090), (1679, 128260), (2332, 92345), (2420, 88987), (2438, 88330), (2530, 85118), (2783, 77380), (2915, 73876), (3212, 67045), (3358, 64130), (3869, 55660), (4015, 53636), (4876, 44165), (5060, 42559), (5566, 38690), (5830, 36938), (6095, 35332), (6413, 33580), (6716, 32065), (7738, 27830), (8030, 26818), (8395, 25652), (8833, 24380), (11132, 19345), (11660, 18469), (12190, 17666), (12826, 16790), (13409, 16060), (13915, 15476)]