28889840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2243}}^1$

素因数の和:2286

約数の個数: 80

約数和(自身を含む): 80137728

約数和(自身を除く): 51247888

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 644, 805, 920, 1288, 1610, 1840, 2243, 2576, 3220, 4486, 6440, 8972, 11215, 12880, 15701, 17944, 22430, 31402, 35888, 44860, 51589, 62804, 78505, 89720, 103178, 125608, 157010, 179440, 206356, 251216, 257945, 314020, 361123, 412712, 515890, 628040, 722246, 825424, 1031780, 1256080, 1444492, 1805615, 2063560, 2888984, 3611230, 4127120, 5777968, 7222460, 14444920, 28889840]

約数ペア:

[(1, 28889840), (2, 14444920), (4, 7222460), (5, 5777968), (7, 4127120), (8, 3611230), (10, 2888984), (14, 2063560), (16, 1805615), (20, 1444492), (23, 1256080), (28, 1031780), (35, 825424), (40, 722246), (46, 628040), (56, 515890), (70, 412712), (80, 361123), (92, 314020), (112, 257945), (115, 251216), (140, 206356), (161, 179440), (184, 157010), (230, 125608), (280, 103178), (322, 89720), (368, 78505), (460, 62804), (560, 51589), (644, 44860), (805, 35888), (920, 31402), (1288, 22430), (1610, 17944), (1840, 15701), (2243, 12880), (2576, 11215), (3220, 8972), (4486, 6440)]