28900425

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1193}}^1$

素因数の和:1242

約数の個数: 48

約数和(自身を含む): 53300160

約数和(自身を除く): 24399735

約数列:

[1, 3, 5, 15, 17, 19, 25, 51, 57, 75, 85, 95, 255, 285, 323, 425, 475, 969, 1193, 1275, 1425, 1615, 3579, 4845, 5965, 8075, 17895, 20281, 22667, 24225, 29825, 60843, 68001, 89475, 101405, 113335, 304215, 340005, 385339, 507025, 566675, 1156017, 1521075, 1700025, 1926695, 5780085, 9633475, 28900425]

約数ペア:

[(1, 28900425), (3, 9633475), (5, 5780085), (15, 1926695), (17, 1700025), (19, 1521075), (25, 1156017), (51, 566675), (57, 507025), (75, 385339), (85, 340005), (95, 304215), (255, 113335), (285, 101405), (323, 89475), (425, 68001), (475, 60843), (969, 29825), (1193, 24225), (1275, 22667), (1425, 20281), (1615, 17895), (3579, 8075), (4845, 5965)]