20531610

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1$

素因数の和:281

約数の個数: 128

約数和(自身を含む): 61931520

約数和(自身を除く): 41399910

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 27, 30, 31, 33, 45, 54, 55, 62, 66, 90, 93, 99, 110, 135, 155, 165, 186, 198, 223, 270, 279, 297, 310, 330, 341, 446, 465, 495, 558, 594, 669, 682, 837, 930, 990, 1023, 1115, 1338, 1395, 1485, 1674, 1705, 2007, 2046, 2230, 2453, 2790, 2970, 3069, 3345, 3410, 4014, 4185, 4906, 5115, 6021, 6138, 6690, 6913, 7359, 8370, 9207, 10035, 10230, 12042, 12265, 13826, 14718, 15345, 18414, 20070, 20739, 22077, 24530, 30105, 30690, 34565, 36795, 41478, 44154, 46035, 60210, 62217, 66231, 69130, 73590, 76043, 92070, 103695, 110385, 124434, 132462, 152086, 186651, 207390, 220770, 228129, 311085, 331155, 373302, 380215, 456258, 622170, 662310, 684387, 760430, 933255, 1140645, 1368774, 1866510, 2053161, 2281290, 3421935, 4106322, 6843870, 10265805, 20531610]

約数ペア:

[(1, 20531610), (2, 10265805), (3, 6843870), (5, 4106322), (6, 3421935), (9, 2281290), (10, 2053161), (11, 1866510), (15, 1368774), (18, 1140645), (22, 933255), (27, 760430), (30, 684387), (31, 662310), (33, 622170), (45, 456258), (54, 380215), (55, 373302), (62, 331155), (66, 311085), (90, 228129), (93, 220770), (99, 207390), (110, 186651), (135, 152086), (155, 132462), (165, 124434), (186, 110385), (198, 103695), (223, 92070), (270, 76043), (279, 73590), (297, 69130), (310, 66231), (330, 62217), (341, 60210), (446, 46035), (465, 44154), (495, 41478), (558, 36795), (594, 34565), (669, 30690), (682, 30105), (837, 24530), (930, 22077), (990, 20739), (1023, 20070), (1115, 18414), (1338, 15345), (1395, 14718), (1485, 13826), (1674, 12265), (1705, 12042), (2007, 10230), (2046, 10035), (2230, 9207), (2453, 8370), (2790, 7359), (2970, 6913), (3069, 6690), (3345, 6138), (3410, 6021), (4014, 5115), (4185, 4906)]