20293425

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1$

素因数の和:183

約数の個数: 72

約数和(自身を含む): 39461760

約数和(自身を除く): 19168335

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 47, 57, 75, 95, 101, 141, 171, 225, 235, 285, 303, 423, 475, 505, 705, 855, 893, 909, 1175, 1425, 1515, 1919, 2115, 2525, 2679, 3525, 4275, 4465, 4545, 4747, 5757, 7575, 8037, 9595, 10575, 13395, 14241, 17271, 22325, 22725, 23735, 28785, 40185, 42723, 47975, 66975, 71205, 86355, 90193, 118675, 143925, 200925, 213615, 270579, 356025, 431775, 450965, 811737, 1068075, 1352895, 2254825, 4058685, 6764475, 20293425]

約数ペア:

[(1, 20293425), (3, 6764475), (5, 4058685), (9, 2254825), (15, 1352895), (19, 1068075), (25, 811737), (45, 450965), (47, 431775), (57, 356025), (75, 270579), (95, 213615), (101, 200925), (141, 143925), (171, 118675), (225, 90193), (235, 86355), (285, 71205), (303, 66975), (423, 47975), (475, 42723), (505, 40185), (705, 28785), (855, 23735), (893, 22725), (909, 22325), (1175, 17271), (1425, 14241), (1515, 13395), (1919, 10575), (2115, 9595), (2525, 8037), (2679, 7575), (3525, 5757), (4275, 4747), (4465, 4545)]