15320025

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:231

約数の個数: 72

約数和(自身を含む): 32033664

約数和(自身を除く): 16713639

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 71, 75, 105, 137, 175, 213, 225, 315, 355, 411, 497, 525, 639, 685, 959, 1065, 1233, 1491, 1575, 1775, 2055, 2485, 2877, 3195, 3425, 4473, 4795, 5325, 6165, 7455, 8631, 9727, 10275, 12425, 14385, 15975, 22365, 23975, 29181, 30825, 37275, 43155, 48635, 68089, 71925, 87543, 111825, 145905, 204267, 215775, 243175, 340445, 437715, 612801, 729525, 1021335, 1702225, 2188575, 3064005, 5106675, 15320025]

約数ペア:

[(1, 15320025), (3, 5106675), (5, 3064005), (7, 2188575), (9, 1702225), (15, 1021335), (21, 729525), (25, 612801), (35, 437715), (45, 340445), (63, 243175), (71, 215775), (75, 204267), (105, 145905), (137, 111825), (175, 87543), (213, 71925), (225, 68089), (315, 48635), (355, 43155), (411, 37275), (497, 30825), (525, 29181), (639, 23975), (685, 22365), (959, 15975), (1065, 14385), (1233, 12425), (1491, 10275), (1575, 9727), (1775, 8631), (2055, 7455), (2485, 6165), (2877, 5325), (3195, 4795), (3425, 4473)]