220193775

素因数分解:

$3^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{619}}^1$

素因数の和:686

約数の個数: 96

約数和(自身を含む): 442828800

約数和(自身を除く): 222635025

約数列:

[1, 3, 5, 9, 15, 17, 25, 27, 31, 45, 51, 75, 85, 93, 135, 153, 155, 225, 255, 279, 425, 459, 465, 527, 619, 675, 765, 775, 837, 1275, 1395, 1581, 1857, 2295, 2325, 2635, 3095, 3825, 4185, 4743, 5571, 6975, 7905, 9285, 10523, 11475, 13175, 14229, 15475, 16713, 19189, 20925, 23715, 27855, 31569, 39525, 46425, 52615, 57567, 71145, 83565, 94707, 95945, 118575, 139275, 157845, 172701, 263075, 284121, 287835, 326213, 355725, 417825, 473535, 479725, 518103, 789225, 863505, 978639, 1420605, 1439175, 1631065, 2367675, 2590515, 2935917, 4317525, 4893195, 7103025, 8155325, 8807751, 12952575, 14679585, 24465975, 44038755, 73397925, 220193775]

約数ペア:

[(1, 220193775), (3, 73397925), (5, 44038755), (9, 24465975), (15, 14679585), (17, 12952575), (25, 8807751), (27, 8155325), (31, 7103025), (45, 4893195), (51, 4317525), (75, 2935917), (85, 2590515), (93, 2367675), (135, 1631065), (153, 1439175), (155, 1420605), (225, 978639), (255, 863505), (279, 789225), (425, 518103), (459, 479725), (465, 473535), (527, 417825), (619, 355725), (675, 326213), (765, 287835), (775, 284121), (837, 263075), (1275, 172701), (1395, 157845), (1581, 139275), (1857, 118575), (2295, 95945), (2325, 94707), (2635, 83565), (3095, 71145), (3825, 57567), (4185, 52615), (4743, 46425), (5571, 39525), (6975, 31569), (7905, 27855), (9285, 23715), (10523, 20925), (11475, 19189), (13175, 16713), (14229, 15475)]