20081490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:216

約数の個数: 128

約数和(自身を含む): 58834944

約数和(自身を除く): 38753454

約数列:

[1, 2, 3, 5, 6, 10, 11, 13, 15, 22, 26, 30, 31, 33, 39, 55, 62, 65, 66, 78, 93, 110, 130, 143, 151, 155, 165, 186, 195, 286, 302, 310, 330, 341, 390, 403, 429, 453, 465, 682, 715, 755, 806, 858, 906, 930, 1023, 1209, 1430, 1510, 1661, 1705, 1963, 2015, 2046, 2145, 2265, 2418, 3322, 3410, 3926, 4030, 4290, 4433, 4530, 4681, 4983, 5115, 5889, 6045, 8305, 8866, 9362, 9815, 9966, 10230, 11778, 12090, 13299, 14043, 16610, 19630, 21593, 22165, 23405, 24915, 26598, 28086, 29445, 43186, 44330, 46810, 49830, 51491, 58890, 60853, 64779, 66495, 70215, 102982, 107965, 121706, 129558, 132990, 140430, 154473, 182559, 215930, 257455, 304265, 308946, 323895, 365118, 514910, 608530, 647790, 669383, 772365, 912795, 1338766, 1544730, 1825590, 2008149, 3346915, 4016298, 6693830, 10040745, 20081490]

約数ペア:

[(1, 20081490), (2, 10040745), (3, 6693830), (5, 4016298), (6, 3346915), (10, 2008149), (11, 1825590), (13, 1544730), (15, 1338766), (22, 912795), (26, 772365), (30, 669383), (31, 647790), (33, 608530), (39, 514910), (55, 365118), (62, 323895), (65, 308946), (66, 304265), (78, 257455), (93, 215930), (110, 182559), (130, 154473), (143, 140430), (151, 132990), (155, 129558), (165, 121706), (186, 107965), (195, 102982), (286, 70215), (302, 66495), (310, 64779), (330, 60853), (341, 58890), (390, 51491), (403, 49830), (429, 46810), (453, 44330), (465, 43186), (682, 29445), (715, 28086), (755, 26598), (806, 24915), (858, 23405), (906, 22165), (930, 21593), (1023, 19630), (1209, 16610), (1430, 14043), (1510, 13299), (1661, 12090), (1705, 11778), (1963, 10230), (2015, 9966), (2046, 9815), (2145, 9362), (2265, 8866), (2418, 8305), (3322, 6045), (3410, 5889), (3926, 5115), (4030, 4983), (4290, 4681), (4433, 4530)]