201220425

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{251}}^1\times {\mathrm{509}}^1$

素因数の和:783

約数の個数: 72

約数和(自身を含む): 414348480

約数和(自身を除く): 213128055

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 175, 225, 251, 315, 509, 525, 753, 1255, 1527, 1575, 1757, 2259, 2545, 3563, 3765, 4581, 5271, 6275, 7635, 8785, 10689, 11295, 12725, 15813, 17815, 18825, 22905, 26355, 32067, 38175, 43925, 53445, 56475, 79065, 89075, 114525, 127759, 131775, 160335, 267225, 383277, 395325, 638795, 801675, 894313, 1149831, 1916385, 2682939, 3193975, 4471565, 5749155, 8048817, 9581925, 13414695, 22357825, 28745775, 40244085, 67073475, 201220425]

約数ペア:

[(1, 201220425), (3, 67073475), (5, 40244085), (7, 28745775), (9, 22357825), (15, 13414695), (21, 9581925), (25, 8048817), (35, 5749155), (45, 4471565), (63, 3193975), (75, 2682939), (105, 1916385), (175, 1149831), (225, 894313), (251, 801675), (315, 638795), (509, 395325), (525, 383277), (753, 267225), (1255, 160335), (1527, 131775), (1575, 127759), (1757, 114525), (2259, 89075), (2545, 79065), (3563, 56475), (3765, 53445), (4581, 43925), (5271, 38175), (6275, 32067), (7635, 26355), (8785, 22905), (10689, 18825), (11295, 17815), (12725, 15813)]