19990322485

素因数分解:

$5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{313}}^1$

素因数の和:551

約数の個数: 96

約数和(自身を含む): 29574655200

約数和(自身を除く): 9584332715

約数列:

[1, 5, 7, 29, 35, 49, 89, 101, 145, 203, 245, 313, 445, 505, 623, 707, 1015, 1421, 1565, 2191, 2581, 2929, 3115, 3535, 4361, 4949, 7105, 8989, 9077, 10955, 12905, 14645, 15337, 18067, 20503, 21805, 24745, 27857, 31613, 44945, 45385, 62923, 63539, 76685, 90335, 102515, 126469, 139285, 143521, 158065, 194999, 221291, 260681, 314615, 317695, 440461, 444773, 632345, 717605, 807853, 916777, 974995, 1106455, 1303405, 1364993, 1549037, 1824767, 2202305, 2223865, 2813557, 4039265, 4583885, 5654971, 6417439, 6824965, 7745185, 9123835, 12773369, 14067785, 19694899, 28274855, 32087195, 39584797, 44922073, 63866845, 81593153, 98474495, 137864293, 197923985, 224610365, 407965765, 571152071, 689321465, 2855760355, 3998064497, 19990322485]

約数ペア:

[(1, 19990322485), (5, 3998064497), (7, 2855760355), (29, 689321465), (35, 571152071), (49, 407965765), (89, 224610365), (101, 197923985), (145, 137864293), (203, 98474495), (245, 81593153), (313, 63866845), (445, 44922073), (505, 39584797), (623, 32087195), (707, 28274855), (1015, 19694899), (1421, 14067785), (1565, 12773369), (2191, 9123835), (2581, 7745185), (2929, 6824965), (3115, 6417439), (3535, 5654971), (4361, 4583885), (4949, 4039265), (7105, 2813557), (8989, 2223865), (9077, 2202305), (10955, 1824767), (12905, 1549037), (14645, 1364993), (15337, 1303405), (18067, 1106455), (20503, 974995), (21805, 916777), (24745, 807853), (27857, 717605), (31613, 632345), (44945, 444773), (45385, 440461), (62923, 317695), (63539, 314615), (76685, 260681), (90335, 221291), (102515, 194999), (126469, 158065), (139285, 143521)]