4021780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1249}}^1$

素因数の和:1288

約数の個数: 48

約数和(自身を含む): 10080000

約数和(自身を除く): 6058220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1249, 1610, 2498, 3220, 4996, 6245, 8743, 12490, 17486, 24980, 28727, 34972, 43715, 57454, 87430, 114908, 143635, 174860, 201089, 287270, 402178, 574540, 804356, 1005445, 2010890, 4021780]

約数ペア:

[(1, 4021780), (2, 2010890), (4, 1005445), (5, 804356), (7, 574540), (10, 402178), (14, 287270), (20, 201089), (23, 174860), (28, 143635), (35, 114908), (46, 87430), (70, 57454), (92, 43715), (115, 34972), (140, 28727), (161, 24980), (230, 17486), (322, 12490), (460, 8743), (644, 6245), (805, 4996), (1249, 3220), (1610, 2498)]