13128525

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1$

素因数の和:155

約数の個数: 72

約数和(自身を含む): 25727520

約数和(自身を除く): 12598995

約数列:

[1, 3, 5, 9, 15, 19, 25, 37, 45, 57, 75, 83, 95, 111, 171, 185, 225, 249, 285, 333, 415, 475, 555, 703, 747, 855, 925, 1245, 1425, 1577, 1665, 2075, 2109, 2775, 3071, 3515, 3735, 4275, 4731, 6225, 6327, 7885, 8325, 9213, 10545, 14193, 15355, 17575, 18675, 23655, 27639, 31635, 39425, 46065, 52725, 58349, 70965, 76775, 118275, 138195, 158175, 175047, 230325, 291745, 354825, 525141, 690975, 875235, 1458725, 2625705, 4376175, 13128525]

約数ペア:

[(1, 13128525), (3, 4376175), (5, 2625705), (9, 1458725), (15, 875235), (19, 690975), (25, 525141), (37, 354825), (45, 291745), (57, 230325), (75, 175047), (83, 158175), (95, 138195), (111, 118275), (171, 76775), (185, 70965), (225, 58349), (249, 52725), (285, 46065), (333, 39425), (415, 31635), (475, 27639), (555, 23655), (703, 18675), (747, 17575), (855, 15355), (925, 14193), (1245, 10545), (1425, 9213), (1577, 8325), (1665, 7885), (2075, 6327), (2109, 6225), (2775, 4731), (3071, 4275), (3515, 3735)]