21536460575

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1\times {\mathrm{503}}^1$

素因数の和:781

約数の個数: 96

約数和(自身を含む): 32797900800

約数和(自身を除く): 11261440225

約数列:

[1, 5, 7, 19, 25, 35, 79, 95, 133, 163, 175, 395, 475, 503, 553, 665, 815, 1141, 1501, 1975, 2515, 2765, 3097, 3325, 3521, 4075, 5705, 7505, 9557, 10507, 12575, 12877, 13825, 15485, 17605, 21679, 28525, 37525, 39737, 47785, 52535, 64385, 66899, 77425, 81989, 88025, 90139, 108395, 198685, 238925, 244663, 262675, 278159, 321925, 334495, 409945, 450695, 541975, 573923, 755003, 993425, 1223315, 1390795, 1557791, 1672475, 1712641, 2049725, 2253475, 2869615, 3775015, 5285021, 6116575, 6477131, 6953975, 7788955, 8563205, 10904537, 14348075, 18875075, 26425105, 32385655, 38944775, 42816025, 45339917, 54522685, 123065489, 132125525, 161928275, 226699585, 272613425, 615327445, 861458423, 1133497925, 3076637225, 4307292115, 21536460575]

約数ペア:

[(1, 21536460575), (5, 4307292115), (7, 3076637225), (19, 1133497925), (25, 861458423), (35, 615327445), (79, 272613425), (95, 226699585), (133, 161928275), (163, 132125525), (175, 123065489), (395, 54522685), (475, 45339917), (503, 42816025), (553, 38944775), (665, 32385655), (815, 26425105), (1141, 18875075), (1501, 14348075), (1975, 10904537), (2515, 8563205), (2765, 7788955), (3097, 6953975), (3325, 6477131), (3521, 6116575), (4075, 5285021), (5705, 3775015), (7505, 2869615), (9557, 2253475), (10507, 2049725), (12575, 1712641), (12877, 1672475), (13825, 1557791), (15485, 1390795), (17605, 1223315), (21679, 993425), (28525, 755003), (37525, 573923), (39737, 541975), (47785, 450695), (52535, 409945), (64385, 334495), (66899, 321925), (77425, 278159), (81989, 262675), (88025, 244663), (90139, 238925), (108395, 198685)]