889798975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{1399}}^1$

素因数の和:1544

約数の個数: 48

約数和(自身を含む): 1263808000

約数和(自身を除く): 374009025

約数列:

[1, 5, 13, 19, 25, 65, 95, 103, 247, 325, 475, 515, 1235, 1339, 1399, 1957, 2575, 6175, 6695, 6995, 9785, 18187, 25441, 26581, 33475, 34975, 48925, 90935, 127205, 132905, 144097, 345553, 454675, 636025, 664525, 720485, 1727765, 1873261, 2737843, 3602425, 8638825, 9366305, 13689215, 35591959, 46831525, 68446075, 177959795, 889798975]

約数ペア:

[(1, 889798975), (5, 177959795), (13, 68446075), (19, 46831525), (25, 35591959), (65, 13689215), (95, 9366305), (103, 8638825), (247, 3602425), (325, 2737843), (475, 1873261), (515, 1727765), (1235, 720485), (1339, 664525), (1399, 636025), (1957, 454675), (2575, 345553), (6175, 144097), (6695, 132905), (6995, 127205), (9785, 90935), (18187, 48925), (25441, 34975), (26581, 33475)]