2103211075

素因数分解:

$5^2\times 7^2\times {\mathrm{79}}^1\times {\mathrm{103}}^1\times {\mathrm{211}}^1$

素因数の和:417

約数の個数: 72

約数和(自身を含む): 3116705280

約数和(自身を除く): 1013494205

約数列:

[1, 5, 7, 25, 35, 49, 79, 103, 175, 211, 245, 395, 515, 553, 721, 1055, 1225, 1477, 1975, 2575, 2765, 3605, 3871, 5047, 5275, 7385, 8137, 10339, 13825, 16669, 18025, 19355, 21733, 25235, 36925, 40685, 51695, 56959, 83345, 96775, 108665, 116683, 126175, 152131, 203425, 258475, 284795, 398713, 416725, 543325, 583415, 760655, 816781, 1064917, 1423975, 1716907, 1993565, 2917075, 3803275, 4083905, 5324585, 8584535, 9967825, 12018349, 20419525, 26622925, 42922675, 60091745, 84128443, 300458725, 420642215, 2103211075]

約数ペア:

[(1, 2103211075), (5, 420642215), (7, 300458725), (25, 84128443), (35, 60091745), (49, 42922675), (79, 26622925), (103, 20419525), (175, 12018349), (211, 9967825), (245, 8584535), (395, 5324585), (515, 4083905), (553, 3803275), (721, 2917075), (1055, 1993565), (1225, 1716907), (1477, 1423975), (1975, 1064917), (2575, 816781), (2765, 760655), (3605, 583415), (3871, 543325), (5047, 416725), (5275, 398713), (7385, 284795), (8137, 258475), (10339, 203425), (13825, 152131), (16669, 126175), (18025, 116683), (19355, 108665), (21733, 96775), (25235, 83345), (36925, 56959), (40685, 51695)]