31220392

素因数分解:

$2^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1$

素因数の和:290

約数の個数: 64

約数和(自身を含む): 69621120

約数和(自身を除く): 38400728

約数列:

[1, 2, 4, 7, 8, 14, 28, 53, 56, 67, 106, 134, 157, 212, 268, 314, 371, 424, 469, 536, 628, 742, 938, 1099, 1256, 1484, 1876, 2198, 2968, 3551, 3752, 4396, 7102, 8321, 8792, 10519, 14204, 16642, 21038, 24857, 28408, 33284, 42076, 49714, 58247, 66568, 73633, 84152, 99428, 116494, 147266, 198856, 232988, 294532, 465976, 557507, 589064, 1115014, 2230028, 3902549, 4460056, 7805098, 15610196, 31220392]

約数ペア:

[(1, 31220392), (2, 15610196), (4, 7805098), (7, 4460056), (8, 3902549), (14, 2230028), (28, 1115014), (53, 589064), (56, 557507), (67, 465976), (106, 294532), (134, 232988), (157, 198856), (212, 147266), (268, 116494), (314, 99428), (371, 84152), (424, 73633), (469, 66568), (536, 58247), (628, 49714), (742, 42076), (938, 33284), (1099, 28408), (1256, 24857), (1484, 21038), (1876, 16642), (2198, 14204), (2968, 10519), (3551, 8792), (3752, 8321), (4396, 7102)]