28431130

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:383

約数の個数: 64

約数和(自身を含む): 63705600

約数和(自身を除く): 35274470

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 157, 182, 199, 314, 398, 455, 785, 910, 995, 1099, 1393, 1570, 1990, 2041, 2198, 2587, 2786, 4082, 5174, 5495, 6965, 10205, 10990, 12935, 13930, 14287, 18109, 20410, 25870, 28574, 31243, 36218, 62486, 71435, 90545, 142870, 156215, 181090, 218701, 312430, 406159, 437402, 812318, 1093505, 2030795, 2187010, 2843113, 4061590, 5686226, 14215565, 28431130]

約数ペア:

[(1, 28431130), (2, 14215565), (5, 5686226), (7, 4061590), (10, 2843113), (13, 2187010), (14, 2030795), (26, 1093505), (35, 812318), (65, 437402), (70, 406159), (91, 312430), (130, 218701), (157, 181090), (182, 156215), (199, 142870), (314, 90545), (398, 71435), (455, 62486), (785, 36218), (910, 31243), (995, 28574), (1099, 25870), (1393, 20410), (1570, 18109), (1990, 14287), (2041, 13930), (2198, 12935), (2587, 10990), (2786, 10205), (4082, 6965), (5174, 5495)]