28930825

素因数分解:

$5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1$

素因数の和:167

約数の個数: 72

約数和(自身を含む): 48345120

約数和(自身を除く): 19414295

約数列:

[1, 5, 7, 11, 19, 25, 35, 49, 55, 77, 95, 113, 133, 175, 209, 245, 275, 385, 475, 539, 565, 665, 791, 931, 1045, 1225, 1243, 1463, 1925, 2147, 2695, 2825, 3325, 3955, 4655, 5225, 5537, 6215, 7315, 8701, 10241, 10735, 13475, 15029, 19775, 23275, 23617, 27685, 31075, 36575, 43505, 51205, 53675, 60907, 75145, 105203, 118085, 138425, 165319, 217525, 256025, 304535, 375725, 526015, 590425, 826595, 1157233, 1522675, 2630075, 4132975, 5786165, 28930825]

約数ペア:

[(1, 28930825), (5, 5786165), (7, 4132975), (11, 2630075), (19, 1522675), (25, 1157233), (35, 826595), (49, 590425), (55, 526015), (77, 375725), (95, 304535), (113, 256025), (133, 217525), (175, 165319), (209, 138425), (245, 118085), (275, 105203), (385, 75145), (475, 60907), (539, 53675), (565, 51205), (665, 43505), (791, 36575), (931, 31075), (1045, 27685), (1225, 23617), (1243, 23275), (1463, 19775), (1925, 15029), (2147, 13475), (2695, 10735), (2825, 10241), (3325, 8701), (3955, 7315), (4655, 6215), (5225, 5537)]