20197546125

素因数分解:

$3^1\times 5^3\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{349}}^1$

素因数の和:544

約数の個数: 128

約数和(自身を含む): 35786150400

約数和(自身を除く): 15588604275

約数列:

[1, 3, 5, 15, 25, 37, 43, 75, 97, 111, 125, 129, 185, 215, 291, 349, 375, 485, 555, 645, 925, 1047, 1075, 1455, 1591, 1745, 2425, 2775, 3225, 3589, 4171, 4625, 4773, 5235, 5375, 7275, 7955, 8725, 10767, 12125, 12513, 12913, 13875, 15007, 16125, 17945, 20855, 23865, 26175, 33853, 36375, 38739, 39775, 43625, 45021, 53835, 62565, 64565, 75035, 89725, 101559, 104275, 119325, 130875, 154327, 169265, 193695, 198875, 225105, 269175, 312825, 322825, 375175, 448625, 462981, 507795, 521375, 555259, 596625, 771635, 846325, 968475, 1125525, 1252561, 1345875, 1455679, 1564125, 1614125, 1665777, 1875875, 2314905, 2538975, 2776295, 3757683, 3858175, 4231625, 4367037, 4842375, 5627625, 6262805, 7278395, 8328885, 11574525, 12694875, 13881475, 18788415, 19290875, 21835185, 31314025, 36391975, 41644425, 53860123, 57872625, 69407375, 93942075, 109175925, 156570125, 161580369, 181959875, 208222125, 269300615, 469710375, 545879625, 807901845, 1346503075, 4039509225, 6732515375, 20197546125]

約数ペア:

[(1, 20197546125), (3, 6732515375), (5, 4039509225), (15, 1346503075), (25, 807901845), (37, 545879625), (43, 469710375), (75, 269300615), (97, 208222125), (111, 181959875), (125, 161580369), (129, 156570125), (185, 109175925), (215, 93942075), (291, 69407375), (349, 57872625), (375, 53860123), (485, 41644425), (555, 36391975), (645, 31314025), (925, 21835185), (1047, 19290875), (1075, 18788415), (1455, 13881475), (1591, 12694875), (1745, 11574525), (2425, 8328885), (2775, 7278395), (3225, 6262805), (3589, 5627625), (4171, 4842375), (4625, 4367037), (4773, 4231625), (5235, 3858175), (5375, 3757683), (7275, 2776295), (7955, 2538975), (8725, 2314905), (10767, 1875875), (12125, 1665777), (12513, 1614125), (12913, 1564125), (13875, 1455679), (15007, 1345875), (16125, 1252561), (17945, 1125525), (20855, 968475), (23865, 846325), (26175, 771635), (33853, 596625), (36375, 555259), (38739, 521375), (39775, 507795), (43625, 462981), (45021, 448625), (53835, 375175), (62565, 322825), (64565, 312825), (75035, 269175), (89725, 225105), (101559, 198875), (104275, 193695), (119325, 169265), (130875, 154327)]