28691390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{769}}^1$

素因数の和:837

約数の個数: 64

約数和(自身を含む): 65197440

約数和(自身を除く): 36506050

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 41, 65, 70, 82, 91, 130, 182, 205, 287, 410, 455, 533, 574, 769, 910, 1066, 1435, 1538, 2665, 2870, 3731, 3845, 5330, 5383, 7462, 7690, 9997, 10766, 18655, 19994, 26915, 31529, 37310, 49985, 53830, 63058, 69979, 99970, 139958, 157645, 220703, 315290, 349895, 409877, 441406, 699790, 819754, 1103515, 2049385, 2207030, 2869139, 4098770, 5738278, 14345695, 28691390]

約数ペア:

[(1, 28691390), (2, 14345695), (5, 5738278), (7, 4098770), (10, 2869139), (13, 2207030), (14, 2049385), (26, 1103515), (35, 819754), (41, 699790), (65, 441406), (70, 409877), (82, 349895), (91, 315290), (130, 220703), (182, 157645), (205, 139958), (287, 99970), (410, 69979), (455, 63058), (533, 53830), (574, 49985), (769, 37310), (910, 31529), (1066, 26915), (1435, 19994), (1538, 18655), (2665, 10766), (2870, 9997), (3731, 7690), (3845, 7462), (5330, 5383)]