19735840

素因数分解:

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

素因数の和:242

約数の個数: 96

約数和(自身を含む): 50512896

約数和(自身を除く): 30777056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 32, 40, 46, 62, 80, 92, 115, 124, 155, 160, 173, 184, 230, 248, 310, 346, 368, 460, 496, 620, 692, 713, 736, 865, 920, 992, 1240, 1384, 1426, 1730, 1840, 2480, 2768, 2852, 3460, 3565, 3680, 3979, 4960, 5363, 5536, 5704, 6920, 7130, 7958, 10726, 11408, 13840, 14260, 15916, 19895, 21452, 22816, 26815, 27680, 28520, 31832, 39790, 42904, 53630, 57040, 63664, 79580, 85808, 107260, 114080, 123349, 127328, 159160, 171616, 214520, 246698, 318320, 429040, 493396, 616745, 636640, 858080, 986792, 1233490, 1973584, 2466980, 3947168, 4933960, 9867920, 19735840]

約数ペア:

[(1, 19735840), (2, 9867920), (4, 4933960), (5, 3947168), (8, 2466980), (10, 1973584), (16, 1233490), (20, 986792), (23, 858080), (31, 636640), (32, 616745), (40, 493396), (46, 429040), (62, 318320), (80, 246698), (92, 214520), (115, 171616), (124, 159160), (155, 127328), (160, 123349), (173, 114080), (184, 107260), (230, 85808), (248, 79580), (310, 63664), (346, 57040), (368, 53630), (460, 42904), (496, 39790), (620, 31832), (692, 28520), (713, 27680), (736, 26815), (865, 22816), (920, 21452), (992, 19895), (1240, 15916), (1384, 14260), (1426, 13840), (1730, 11408), (1840, 10726), (2480, 7958), (2768, 7130), (2852, 6920), (3460, 5704), (3565, 5536), (3680, 5363), (3979, 4960)]