20852665720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{173}}^1\times {\mathrm{3541}}^1$

素因数の和:3785

約数の個数: 128

約数和(自身を含む): 50586560640

約数和(自身を除く): 29733894920

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 37, 40, 46, 74, 92, 115, 148, 173, 184, 185, 230, 296, 346, 370, 460, 692, 740, 851, 865, 920, 1384, 1480, 1702, 1730, 3404, 3460, 3541, 3979, 4255, 6401, 6808, 6920, 7082, 7958, 8510, 12802, 14164, 15916, 17020, 17705, 19895, 25604, 28328, 31832, 32005, 34040, 35410, 39790, 51208, 64010, 70820, 79580, 81443, 128020, 131017, 141640, 147223, 159160, 162886, 256040, 262034, 294446, 325772, 407215, 524068, 588892, 612593, 651544, 655085, 736115, 814430, 1048136, 1177784, 1225186, 1310170, 1472230, 1628860, 2450372, 2620340, 2944460, 3013391, 3062965, 3257720, 4900744, 5240680, 5888920, 6026782, 6125930, 12053564, 12251860, 14089639, 15066955, 22665941, 24107128, 24503720, 28179278, 30133910, 45331882, 56358556, 60267820, 70448195, 90663764, 112717112, 113329705, 120535640, 140896390, 181327528, 226659410, 281792780, 453318820, 521316643, 563585560, 906637640, 1042633286, 2085266572, 2606583215, 4170533144, 5213166430, 10426332860, 20852665720]

約数ペア:

[(1, 20852665720), (2, 10426332860), (4, 5213166430), (5, 4170533144), (8, 2606583215), (10, 2085266572), (20, 1042633286), (23, 906637640), (37, 563585560), (40, 521316643), (46, 453318820), (74, 281792780), (92, 226659410), (115, 181327528), (148, 140896390), (173, 120535640), (184, 113329705), (185, 112717112), (230, 90663764), (296, 70448195), (346, 60267820), (370, 56358556), (460, 45331882), (692, 30133910), (740, 28179278), (851, 24503720), (865, 24107128), (920, 22665941), (1384, 15066955), (1480, 14089639), (1702, 12251860), (1730, 12053564), (3404, 6125930), (3460, 6026782), (3541, 5888920), (3979, 5240680), (4255, 4900744), (6401, 3257720), (6808, 3062965), (6920, 3013391), (7082, 2944460), (7958, 2620340), (8510, 2450372), (12802, 1628860), (14164, 1472230), (15916, 1310170), (17020, 1225186), (17705, 1177784), (19895, 1048136), (25604, 814430), (28328, 736115), (31832, 655085), (32005, 651544), (34040, 612593), (35410, 588892), (39790, 524068), (51208, 407215), (64010, 325772), (70820, 294446), (79580, 262034), (81443, 256040), (128020, 162886), (131017, 159160), (141640, 147223)]