19895937985

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{5749}}^1$

素因数の和:5962

約数の個数: 64

約数和(自身を含む): 30404160000

約数和(自身を除く): 10508222015

約数列:

[1, 5, 7, 11, 35, 55, 77, 89, 101, 385, 445, 505, 623, 707, 979, 1111, 3115, 3535, 4895, 5555, 5749, 6853, 7777, 8989, 28745, 34265, 38885, 40243, 44945, 62923, 63239, 98879, 201215, 314615, 316195, 442673, 494395, 511661, 580649, 692153, 2213365, 2558305, 2903245, 3460765, 3581627, 4064543, 5628271, 6387139, 17908135, 20322715, 28141355, 31935695, 39397897, 44709973, 51677761, 196989485, 223549865, 258388805, 361744327, 568455371, 1808721635, 2842276855, 3979187597, 19895937985]

約数ペア:

[(1, 19895937985), (5, 3979187597), (7, 2842276855), (11, 1808721635), (35, 568455371), (55, 361744327), (77, 258388805), (89, 223549865), (101, 196989485), (385, 51677761), (445, 44709973), (505, 39397897), (623, 31935695), (707, 28141355), (979, 20322715), (1111, 17908135), (3115, 6387139), (3535, 5628271), (4895, 4064543), (5555, 3581627), (5749, 3460765), (6853, 2903245), (7777, 2558305), (8989, 2213365), (28745, 692153), (34265, 580649), (38885, 511661), (40243, 494395), (44945, 442673), (62923, 316195), (63239, 314615), (98879, 201215)]