18977950

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{269}}^1$

素因数の和:381

約数の個数: 48

約数和(自身を含む): 37966320

約数和(自身を除く): 18988370

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 83, 85, 166, 170, 269, 415, 425, 538, 830, 850, 1345, 1411, 2075, 2690, 2822, 4150, 4573, 6725, 7055, 9146, 13450, 14110, 22327, 22865, 35275, 44654, 45730, 70550, 111635, 114325, 223270, 228650, 379559, 558175, 759118, 1116350, 1897795, 3795590, 9488975, 18977950]

約数ペア:

[(1, 18977950), (2, 9488975), (5, 3795590), (10, 1897795), (17, 1116350), (25, 759118), (34, 558175), (50, 379559), (83, 228650), (85, 223270), (166, 114325), (170, 111635), (269, 70550), (415, 45730), (425, 44654), (538, 35275), (830, 22865), (850, 22327), (1345, 14110), (1411, 13450), (2075, 9146), (2690, 7055), (2822, 6725), (4150, 4573)]