19827990

素因数分解:

$2^1\times 3^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{269}}^1$

素因数の和:308

約数の個数: 160

約数和(自身を含む): 65862720

約数和(自身を除く): 46034730

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 26, 27, 30, 35, 39, 42, 45, 54, 63, 65, 70, 78, 81, 90, 91, 105, 117, 126, 130, 135, 162, 182, 189, 195, 210, 234, 269, 270, 273, 315, 351, 378, 390, 405, 455, 538, 546, 567, 585, 630, 702, 807, 810, 819, 910, 945, 1053, 1134, 1170, 1345, 1365, 1614, 1638, 1755, 1883, 1890, 2106, 2421, 2457, 2690, 2730, 2835, 3497, 3510, 3766, 4035, 4095, 4842, 4914, 5265, 5649, 5670, 6994, 7263, 7371, 8070, 8190, 9415, 10491, 10530, 11298, 12105, 12285, 14526, 14742, 16947, 17485, 18830, 20982, 21789, 24210, 24479, 24570, 28245, 31473, 33894, 34970, 36315, 36855, 43578, 48958, 50841, 52455, 56490, 62946, 72630, 73437, 73710, 84735, 94419, 101682, 104910, 108945, 122395, 146874, 152523, 157365, 169470, 188838, 217890, 220311, 244790, 254205, 283257, 305046, 314730, 367185, 440622, 472095, 508410, 566514, 660933, 734370, 762615, 944190, 1101555, 1321866, 1416285, 1525230, 1982799, 2203110, 2832570, 3304665, 3965598, 6609330, 9913995, 19827990]

約数ペア:

[(1, 19827990), (2, 9913995), (3, 6609330), (5, 3965598), (6, 3304665), (7, 2832570), (9, 2203110), (10, 1982799), (13, 1525230), (14, 1416285), (15, 1321866), (18, 1101555), (21, 944190), (26, 762615), (27, 734370), (30, 660933), (35, 566514), (39, 508410), (42, 472095), (45, 440622), (54, 367185), (63, 314730), (65, 305046), (70, 283257), (78, 254205), (81, 244790), (90, 220311), (91, 217890), (105, 188838), (117, 169470), (126, 157365), (130, 152523), (135, 146874), (162, 122395), (182, 108945), (189, 104910), (195, 101682), (210, 94419), (234, 84735), (269, 73710), (270, 73437), (273, 72630), (315, 62946), (351, 56490), (378, 52455), (390, 50841), (405, 48958), (455, 43578), (538, 36855), (546, 36315), (567, 34970), (585, 33894), (630, 31473), (702, 28245), (807, 24570), (810, 24479), (819, 24210), (910, 21789), (945, 20982), (1053, 18830), (1134, 17485), (1170, 16947), (1345, 14742), (1365, 14526), (1614, 12285), (1638, 12105), (1755, 11298), (1883, 10530), (1890, 10491), (2106, 9415), (2421, 8190), (2457, 8070), (2690, 7371), (2730, 7263), (2835, 6994), (3497, 5670), (3510, 5649), (3766, 5265), (4035, 4914), (4095, 4842)]