201780225

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{743}}^1$

素因数の和:847

約数の個数: 72

約数和(自身を含む): 388582272

約数和(自身を除く): 186802047

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 71, 75, 85, 153, 213, 225, 255, 355, 425, 639, 743, 765, 1065, 1207, 1275, 1775, 2229, 3195, 3621, 3715, 3825, 5325, 6035, 6687, 10863, 11145, 12631, 15975, 18105, 18575, 30175, 33435, 37893, 52753, 54315, 55725, 63155, 90525, 113679, 158259, 167175, 189465, 263765, 271575, 315775, 474777, 568395, 791295, 896801, 947325, 1318825, 2373885, 2690403, 2841975, 3956475, 4484005, 8071209, 11869425, 13452015, 22420025, 40356045, 67260075, 201780225]

約数ペア:

[(1, 201780225), (3, 67260075), (5, 40356045), (9, 22420025), (15, 13452015), (17, 11869425), (25, 8071209), (45, 4484005), (51, 3956475), (71, 2841975), (75, 2690403), (85, 2373885), (153, 1318825), (213, 947325), (225, 896801), (255, 791295), (355, 568395), (425, 474777), (639, 315775), (743, 271575), (765, 263765), (1065, 189465), (1207, 167175), (1275, 158259), (1775, 113679), (2229, 90525), (3195, 63155), (3621, 55725), (3715, 54315), (3825, 52753), (5325, 37893), (6035, 33435), (6687, 30175), (10863, 18575), (11145, 18105), (12631, 15975)]