205114910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1$

素因数の和:730

約数の個数: 128

約数和(自身を含む): 512483328

約数和(自身を除く): 307368418

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 26, 31, 35, 55, 62, 65, 70, 77, 91, 110, 130, 143, 154, 155, 182, 217, 286, 310, 341, 385, 403, 434, 455, 661, 682, 715, 770, 806, 910, 1001, 1085, 1322, 1430, 1705, 2002, 2015, 2170, 2387, 2821, 3305, 3410, 4030, 4433, 4627, 4774, 5005, 5642, 6610, 7271, 8593, 8866, 9254, 10010, 11935, 14105, 14542, 17186, 20491, 22165, 23135, 23870, 28210, 31031, 36355, 40982, 42965, 44330, 46270, 50897, 60151, 62062, 72710, 85930, 94523, 101794, 102455, 120302, 143437, 155155, 189046, 204910, 225401, 254485, 266383, 286874, 300755, 310310, 450802, 472615, 508970, 532766, 601510, 661661, 717185, 945230, 1127005, 1323322, 1331915, 1434370, 1577807, 1864681, 2254010, 2663830, 2930213, 3155614, 3308305, 3729362, 5860426, 6616610, 7889035, 9323405, 14651065, 15778070, 18646810, 20511491, 29302130, 41022982, 102557455, 205114910]

約数ペア:

[(1, 205114910), (2, 102557455), (5, 41022982), (7, 29302130), (10, 20511491), (11, 18646810), (13, 15778070), (14, 14651065), (22, 9323405), (26, 7889035), (31, 6616610), (35, 5860426), (55, 3729362), (62, 3308305), (65, 3155614), (70, 2930213), (77, 2663830), (91, 2254010), (110, 1864681), (130, 1577807), (143, 1434370), (154, 1331915), (155, 1323322), (182, 1127005), (217, 945230), (286, 717185), (310, 661661), (341, 601510), (385, 532766), (403, 508970), (434, 472615), (455, 450802), (661, 310310), (682, 300755), (715, 286874), (770, 266383), (806, 254485), (910, 225401), (1001, 204910), (1085, 189046), (1322, 155155), (1430, 143437), (1705, 120302), (2002, 102455), (2015, 101794), (2170, 94523), (2387, 85930), (2821, 72710), (3305, 62062), (3410, 60151), (4030, 50897), (4433, 46270), (4627, 44330), (4774, 42965), (5005, 40982), (5642, 36355), (6610, 31031), (7271, 28210), (8593, 23870), (8866, 23135), (9254, 22165), (10010, 20491), (11935, 17186), (14105, 14542)]