20515668

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:189

約数の個数: 96

約数和(自身を含む): 54835200

約数和(自身を除く): 34319532

約数列:

[1, 2, 3, 4, 6, 12, 17, 19, 34, 38, 51, 57, 67, 68, 76, 79, 102, 114, 134, 158, 201, 204, 228, 237, 268, 316, 323, 402, 474, 646, 804, 948, 969, 1139, 1273, 1292, 1343, 1501, 1938, 2278, 2546, 2686, 3002, 3417, 3819, 3876, 4029, 4503, 4556, 5092, 5293, 5372, 6004, 6834, 7638, 8058, 9006, 10586, 13668, 15276, 15879, 16116, 18012, 21172, 21641, 25517, 31758, 43282, 51034, 63516, 64923, 76551, 86564, 89981, 100567, 102068, 129846, 153102, 179962, 201134, 259692, 269943, 301701, 306204, 359924, 402268, 539886, 603402, 1079772, 1206804, 1709639, 3419278, 5128917, 6838556, 10257834, 20515668]

約数ペア:

[(1, 20515668), (2, 10257834), (3, 6838556), (4, 5128917), (6, 3419278), (12, 1709639), (17, 1206804), (19, 1079772), (34, 603402), (38, 539886), (51, 402268), (57, 359924), (67, 306204), (68, 301701), (76, 269943), (79, 259692), (102, 201134), (114, 179962), (134, 153102), (158, 129846), (201, 102068), (204, 100567), (228, 89981), (237, 86564), (268, 76551), (316, 64923), (323, 63516), (402, 51034), (474, 43282), (646, 31758), (804, 25517), (948, 21641), (969, 21172), (1139, 18012), (1273, 16116), (1292, 15879), (1343, 15276), (1501, 13668), (1938, 10586), (2278, 9006), (2546, 8058), (2686, 7638), (3002, 6834), (3417, 6004), (3819, 5372), (3876, 5293), (4029, 5092), (4503, 4556)]