221020160

素因数分解:

$2^{15}\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:125

約数の個数: 128

約数和(自身を含む): 566222400

約数和(自身を除く): 345202240

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 71, 76, 80, 95, 128, 142, 152, 160, 190, 256, 284, 304, 320, 355, 380, 512, 568, 608, 640, 710, 760, 1024, 1136, 1216, 1280, 1349, 1420, 1520, 2048, 2272, 2432, 2560, 2698, 2840, 3040, 4096, 4544, 4864, 5120, 5396, 5680, 6080, 6745, 8192, 9088, 9728, 10240, 10792, 11360, 12160, 13490, 16384, 18176, 19456, 20480, 21584, 22720, 24320, 26980, 32768, 36352, 38912, 40960, 43168, 45440, 48640, 53960, 72704, 77824, 81920, 86336, 90880, 97280, 107920, 145408, 155648, 163840, 172672, 181760, 194560, 215840, 290816, 311296, 345344, 363520, 389120, 431680, 581632, 622592, 690688, 727040, 778240, 863360, 1163264, 1381376, 1454080, 1556480, 1726720, 2326528, 2762752, 2908160, 3112960, 3453440, 5525504, 5816320, 6906880, 11051008, 11632640, 13813760, 22102016, 27627520, 44204032, 55255040, 110510080, 221020160]

約数ペア:

[(1, 221020160), (2, 110510080), (4, 55255040), (5, 44204032), (8, 27627520), (10, 22102016), (16, 13813760), (19, 11632640), (20, 11051008), (32, 6906880), (38, 5816320), (40, 5525504), (64, 3453440), (71, 3112960), (76, 2908160), (80, 2762752), (95, 2326528), (128, 1726720), (142, 1556480), (152, 1454080), (160, 1381376), (190, 1163264), (256, 863360), (284, 778240), (304, 727040), (320, 690688), (355, 622592), (380, 581632), (512, 431680), (568, 389120), (608, 363520), (640, 345344), (710, 311296), (760, 290816), (1024, 215840), (1136, 194560), (1216, 181760), (1280, 172672), (1349, 163840), (1420, 155648), (1520, 145408), (2048, 107920), (2272, 97280), (2432, 90880), (2560, 86336), (2698, 81920), (2840, 77824), (3040, 72704), (4096, 53960), (4544, 48640), (4864, 45440), (5120, 43168), (5396, 40960), (5680, 38912), (6080, 36352), (6745, 32768), (8192, 26980), (9088, 24320), (9728, 22720), (10240, 21584), (10792, 20480), (11360, 19456), (12160, 18176), (13490, 16384)]