257687430

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{8581}}^1$

素因数の和:8622

約数の個数: 128

約数和(自身を含む): 830462976

約数和(自身を除く): 572775546

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 13, 14, 15, 21, 22, 26, 30, 33, 35, 39, 42, 55, 65, 66, 70, 77, 78, 91, 105, 110, 130, 143, 154, 165, 182, 195, 210, 231, 273, 286, 330, 385, 390, 429, 455, 462, 546, 715, 770, 858, 910, 1001, 1155, 1365, 1430, 2002, 2145, 2310, 2730, 3003, 4290, 5005, 6006, 8581, 10010, 15015, 17162, 25743, 30030, 42905, 51486, 60067, 85810, 94391, 111553, 120134, 128715, 180201, 188782, 223106, 257430, 283173, 300335, 334659, 360402, 471955, 557765, 566346, 600670, 660737, 669318, 780871, 901005, 943910, 1115530, 1227083, 1321474, 1415865, 1561742, 1673295, 1802010, 1982211, 2342613, 2454166, 2831730, 3303685, 3346590, 3681249, 3904355, 3964422, 4685226, 6135415, 6607370, 7362498, 7808710, 8589581, 9911055, 11713065, 12270830, 17179162, 18406245, 19822110, 23426130, 25768743, 36812490, 42947905, 51537486, 85895810, 128843715, 257687430]

約数ペア:

[(1, 257687430), (2, 128843715), (3, 85895810), (5, 51537486), (6, 42947905), (7, 36812490), (10, 25768743), (11, 23426130), (13, 19822110), (14, 18406245), (15, 17179162), (21, 12270830), (22, 11713065), (26, 9911055), (30, 8589581), (33, 7808710), (35, 7362498), (39, 6607370), (42, 6135415), (55, 4685226), (65, 3964422), (66, 3904355), (70, 3681249), (77, 3346590), (78, 3303685), (91, 2831730), (105, 2454166), (110, 2342613), (130, 1982211), (143, 1802010), (154, 1673295), (165, 1561742), (182, 1415865), (195, 1321474), (210, 1227083), (231, 1115530), (273, 943910), (286, 901005), (330, 780871), (385, 669318), (390, 660737), (429, 600670), (455, 566346), (462, 557765), (546, 471955), (715, 360402), (770, 334659), (858, 300335), (910, 283173), (1001, 257430), (1155, 223106), (1365, 188782), (1430, 180201), (2002, 128715), (2145, 120134), (2310, 111553), (2730, 94391), (3003, 85810), (4290, 60067), (5005, 51486), (6006, 42905), (8581, 30030), (10010, 25743), (15015, 17162)]