81804450

素因数分解:

$2^1\times 3^1\times 5^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{461}}^1$

素因数の和:509

約数の個数: 144

約数和(自身を含む): 251608896

約数和(自身を除く): 169804446

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 25, 26, 30, 35, 39, 42, 50, 65, 70, 75, 78, 91, 105, 130, 150, 169, 175, 182, 195, 210, 273, 325, 338, 350, 390, 455, 461, 507, 525, 546, 650, 845, 910, 922, 975, 1014, 1050, 1183, 1365, 1383, 1690, 1950, 2275, 2305, 2366, 2535, 2730, 2766, 3227, 3549, 4225, 4550, 4610, 5070, 5915, 5993, 6454, 6825, 6915, 7098, 8450, 9681, 11525, 11830, 11986, 12675, 13650, 13830, 16135, 17745, 17979, 19362, 23050, 25350, 29575, 29965, 32270, 34575, 35490, 35958, 41951, 48405, 59150, 59930, 69150, 77909, 80675, 83902, 88725, 89895, 96810, 125853, 149825, 155818, 161350, 177450, 179790, 209755, 233727, 242025, 251706, 299650, 389545, 419510, 449475, 467454, 484050, 545363, 629265, 779090, 898950, 1048775, 1090726, 1168635, 1258530, 1636089, 1947725, 2097550, 2337270, 2726815, 3146325, 3272178, 3895450, 5453630, 5843175, 6292650, 8180445, 11686350, 13634075, 16360890, 27268150, 40902225, 81804450]

約数ペア:

[(1, 81804450), (2, 40902225), (3, 27268150), (5, 16360890), (6, 13634075), (7, 11686350), (10, 8180445), (13, 6292650), (14, 5843175), (15, 5453630), (21, 3895450), (25, 3272178), (26, 3146325), (30, 2726815), (35, 2337270), (39, 2097550), (42, 1947725), (50, 1636089), (65, 1258530), (70, 1168635), (75, 1090726), (78, 1048775), (91, 898950), (105, 779090), (130, 629265), (150, 545363), (169, 484050), (175, 467454), (182, 449475), (195, 419510), (210, 389545), (273, 299650), (325, 251706), (338, 242025), (350, 233727), (390, 209755), (455, 179790), (461, 177450), (507, 161350), (525, 155818), (546, 149825), (650, 125853), (845, 96810), (910, 89895), (922, 88725), (975, 83902), (1014, 80675), (1050, 77909), (1183, 69150), (1365, 59930), (1383, 59150), (1690, 48405), (1950, 41951), (2275, 35958), (2305, 35490), (2366, 34575), (2535, 32270), (2730, 29965), (2766, 29575), (3227, 25350), (3549, 23050), (4225, 19362), (4550, 17979), (4610, 17745), (5070, 16135), (5915, 13830), (5993, 13650), (6454, 12675), (6825, 11986), (6915, 11830), (7098, 11525), (8450, 9681)]