20430396

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1$

素因数の和:304

約数の個数: 144

約数和(自身を含む): 66044160

約数和(自身を除く): 45613764

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 19, 21, 28, 34, 36, 38, 42, 51, 57, 63, 68, 76, 84, 102, 114, 119, 126, 133, 153, 171, 204, 228, 238, 251, 252, 266, 306, 323, 342, 357, 399, 476, 502, 532, 612, 646, 684, 714, 753, 798, 969, 1004, 1071, 1197, 1292, 1428, 1506, 1596, 1757, 1938, 2142, 2259, 2261, 2394, 2907, 3012, 3514, 3876, 4267, 4284, 4518, 4522, 4769, 4788, 5271, 5814, 6783, 7028, 8534, 9036, 9044, 9538, 10542, 11628, 12801, 13566, 14307, 15813, 17068, 19076, 20349, 21084, 25602, 27132, 28614, 29869, 31626, 33383, 38403, 40698, 42921, 51204, 57228, 59738, 63252, 66766, 76806, 81073, 81396, 85842, 89607, 100149, 119476, 133532, 153612, 162146, 171684, 179214, 200298, 243219, 268821, 300447, 324292, 358428, 400596, 486438, 537642, 567511, 600894, 729657, 972876, 1075284, 1135022, 1201788, 1459314, 1702533, 2270044, 2918628, 3405066, 5107599, 6810132, 10215198, 20430396]

約数ペア:

[(1, 20430396), (2, 10215198), (3, 6810132), (4, 5107599), (6, 3405066), (7, 2918628), (9, 2270044), (12, 1702533), (14, 1459314), (17, 1201788), (18, 1135022), (19, 1075284), (21, 972876), (28, 729657), (34, 600894), (36, 567511), (38, 537642), (42, 486438), (51, 400596), (57, 358428), (63, 324292), (68, 300447), (76, 268821), (84, 243219), (102, 200298), (114, 179214), (119, 171684), (126, 162146), (133, 153612), (153, 133532), (171, 119476), (204, 100149), (228, 89607), (238, 85842), (251, 81396), (252, 81073), (266, 76806), (306, 66766), (323, 63252), (342, 59738), (357, 57228), (399, 51204), (476, 42921), (502, 40698), (532, 38403), (612, 33383), (646, 31626), (684, 29869), (714, 28614), (753, 27132), (798, 25602), (969, 21084), (1004, 20349), (1071, 19076), (1197, 17068), (1292, 15813), (1428, 14307), (1506, 13566), (1596, 12801), (1757, 11628), (1938, 10542), (2142, 9538), (2259, 9044), (2261, 9036), (2394, 8534), (2907, 7028), (3012, 6783), (3514, 5814), (3876, 5271), (4267, 4788), (4284, 4769), (4518, 4522)]