61639425

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{277}}^1$

素因数の和:359

約数の個数: 72

約数和(自身を含む): 118307904

約数和(自身を除く): 56668479

約数列:

[1, 3, 5, 9, 15, 23, 25, 43, 45, 69, 75, 115, 129, 207, 215, 225, 277, 345, 387, 575, 645, 831, 989, 1035, 1075, 1385, 1725, 1935, 2493, 2967, 3225, 4155, 4945, 5175, 6371, 6925, 8901, 9675, 11911, 12465, 14835, 19113, 20775, 24725, 31855, 35733, 44505, 57339, 59555, 62325, 74175, 95565, 107199, 159275, 178665, 222525, 273953, 286695, 297775, 477825, 535995, 821859, 893325, 1369765, 1433475, 2465577, 2679975, 4109295, 6848825, 12327885, 20546475, 61639425]

約数ペア:

[(1, 61639425), (3, 20546475), (5, 12327885), (9, 6848825), (15, 4109295), (23, 2679975), (25, 2465577), (43, 1433475), (45, 1369765), (69, 893325), (75, 821859), (115, 535995), (129, 477825), (207, 297775), (215, 286695), (225, 273953), (277, 222525), (345, 178665), (387, 159275), (575, 107199), (645, 95565), (831, 74175), (989, 62325), (1035, 59555), (1075, 57339), (1385, 44505), (1725, 35733), (1935, 31855), (2493, 24725), (2967, 20775), (3225, 19113), (4155, 14835), (4945, 12465), (5175, 11911), (6371, 9675), (6925, 8901)]