157886720

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:248

約数の個数: 144

約数和(自身を含む): 409715712

約数和(自身を除く): 251828992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 32, 40, 46, 62, 64, 80, 92, 115, 124, 128, 155, 160, 173, 184, 230, 248, 256, 310, 320, 346, 368, 460, 496, 620, 640, 692, 713, 736, 865, 920, 992, 1240, 1280, 1384, 1426, 1472, 1730, 1840, 1984, 2480, 2768, 2852, 2944, 3460, 3565, 3680, 3968, 3979, 4960, 5363, 5536, 5704, 5888, 6920, 7130, 7360, 7936, 7958, 9920, 10726, 11072, 11408, 13840, 14260, 14720, 15916, 19840, 19895, 21452, 22144, 22816, 26815, 27680, 28520, 29440, 31832, 39680, 39790, 42904, 44288, 45632, 53630, 55360, 57040, 63664, 79580, 85808, 91264, 107260, 110720, 114080, 123349, 127328, 159160, 171616, 182528, 214520, 221440, 228160, 246698, 254656, 318320, 343232, 429040, 456320, 493396, 509312, 616745, 636640, 686464, 858080, 912640, 986792, 1018624, 1233490, 1273280, 1372928, 1716160, 1973584, 2466980, 2546560, 3432320, 3947168, 4933960, 5093120, 6864640, 7894336, 9867920, 15788672, 19735840, 31577344, 39471680, 78943360, 157886720]

約数ペア:

[(1, 157886720), (2, 78943360), (4, 39471680), (5, 31577344), (8, 19735840), (10, 15788672), (16, 9867920), (20, 7894336), (23, 6864640), (31, 5093120), (32, 4933960), (40, 3947168), (46, 3432320), (62, 2546560), (64, 2466980), (80, 1973584), (92, 1716160), (115, 1372928), (124, 1273280), (128, 1233490), (155, 1018624), (160, 986792), (173, 912640), (184, 858080), (230, 686464), (248, 636640), (256, 616745), (310, 509312), (320, 493396), (346, 456320), (368, 429040), (460, 343232), (496, 318320), (620, 254656), (640, 246698), (692, 228160), (713, 221440), (736, 214520), (865, 182528), (920, 171616), (992, 159160), (1240, 127328), (1280, 123349), (1384, 114080), (1426, 110720), (1472, 107260), (1730, 91264), (1840, 85808), (1984, 79580), (2480, 63664), (2768, 57040), (2852, 55360), (2944, 53630), (3460, 45632), (3565, 44288), (3680, 42904), (3968, 39790), (3979, 39680), (4960, 31832), (5363, 29440), (5536, 28520), (5704, 27680), (5888, 26815), (6920, 22816), (7130, 22144), (7360, 21452), (7936, 19895), (7958, 19840), (9920, 15916), (10726, 14720), (11072, 14260), (11408, 13840)]