81397330

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{1249}}^1$

素因数の和:1296

約数の個数: 64

約数和(自身を含む): 180000000

約数和(自身を除く): 98602670

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 49, 70, 95, 98, 133, 190, 245, 266, 343, 490, 665, 686, 931, 1249, 1330, 1715, 1862, 2498, 3430, 4655, 6245, 6517, 8743, 9310, 12490, 13034, 17486, 23731, 32585, 43715, 47462, 61201, 65170, 87430, 118655, 122402, 166117, 237310, 306005, 332234, 428407, 612010, 830585, 856814, 1162819, 1661170, 2142035, 2325638, 4284070, 5814095, 8139733, 11628190, 16279466, 40698665, 81397330]

約数ペア:

[(1, 81397330), (2, 40698665), (5, 16279466), (7, 11628190), (10, 8139733), (14, 5814095), (19, 4284070), (35, 2325638), (38, 2142035), (49, 1661170), (70, 1162819), (95, 856814), (98, 830585), (133, 612010), (190, 428407), (245, 332234), (266, 306005), (343, 237310), (490, 166117), (665, 122402), (686, 118655), (931, 87430), (1249, 65170), (1330, 61201), (1715, 47462), (1862, 43715), (2498, 32585), (3430, 23731), (4655, 17486), (6245, 13034), (6517, 12490), (8743, 9310)]