287464840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{223}}^1$

素因数の和:351

約数の個数: 128

約数和(自身を含む): 729308160

約数和(自身を除く): 441843320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 65, 67, 74, 104, 130, 134, 148, 185, 223, 260, 268, 296, 335, 370, 446, 481, 520, 536, 670, 740, 871, 892, 962, 1115, 1340, 1480, 1742, 1784, 1924, 2230, 2405, 2479, 2680, 2899, 3484, 3848, 4355, 4460, 4810, 4958, 5798, 6968, 8251, 8710, 8920, 9620, 9916, 11596, 12395, 14495, 14941, 16502, 17420, 19240, 19832, 23192, 24790, 28990, 29882, 32227, 33004, 34840, 41255, 49580, 57980, 59764, 64454, 66008, 74705, 82510, 99160, 107263, 115960, 119528, 128908, 149410, 161135, 165020, 194233, 214526, 257816, 298820, 322270, 330040, 388466, 429052, 536315, 552817, 597640, 644540, 776932, 858104, 971165, 1072630, 1105634, 1289080, 1553864, 1942330, 2145260, 2211268, 2764085, 3884660, 4290520, 4422536, 5528170, 7186621, 7769320, 11056340, 14373242, 22112680, 28746484, 35933105, 57492968, 71866210, 143732420, 287464840]

約数ペア:

[(1, 287464840), (2, 143732420), (4, 71866210), (5, 57492968), (8, 35933105), (10, 28746484), (13, 22112680), (20, 14373242), (26, 11056340), (37, 7769320), (40, 7186621), (52, 5528170), (65, 4422536), (67, 4290520), (74, 3884660), (104, 2764085), (130, 2211268), (134, 2145260), (148, 1942330), (185, 1553864), (223, 1289080), (260, 1105634), (268, 1072630), (296, 971165), (335, 858104), (370, 776932), (446, 644540), (481, 597640), (520, 552817), (536, 536315), (670, 429052), (740, 388466), (871, 330040), (892, 322270), (962, 298820), (1115, 257816), (1340, 214526), (1480, 194233), (1742, 165020), (1784, 161135), (1924, 149410), (2230, 128908), (2405, 119528), (2479, 115960), (2680, 107263), (2899, 99160), (3484, 82510), (3848, 74705), (4355, 66008), (4460, 64454), (4810, 59764), (4958, 57980), (5798, 49580), (6968, 41255), (8251, 34840), (8710, 33004), (8920, 32227), (9620, 29882), (9916, 28990), (11596, 24790), (12395, 23192), (14495, 19832), (14941, 19240), (16502, 17420)]