18980430

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:174

約数の個数: 128

約数和(自身を含む): 56401920

約数和(自身を除く): 37421490

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 35, 38, 42, 57, 67, 70, 71, 95, 105, 114, 133, 134, 142, 190, 201, 210, 213, 266, 285, 335, 355, 399, 402, 426, 469, 497, 570, 665, 670, 710, 798, 938, 994, 1005, 1065, 1273, 1330, 1349, 1407, 1491, 1995, 2010, 2130, 2345, 2485, 2546, 2698, 2814, 2982, 3819, 3990, 4047, 4690, 4757, 4970, 6365, 6745, 7035, 7455, 7638, 8094, 8911, 9443, 9514, 12730, 13490, 14070, 14271, 14910, 17822, 18886, 19095, 20235, 23785, 26733, 28329, 28542, 33299, 38190, 40470, 44555, 47215, 47570, 53466, 56658, 66598, 71355, 89110, 90383, 94430, 99897, 133665, 141645, 142710, 166495, 180766, 199794, 267330, 271149, 283290, 332990, 451915, 499485, 542298, 632681, 903830, 998970, 1265362, 1355745, 1898043, 2711490, 3163405, 3796086, 6326810, 9490215, 18980430]

約数ペア:

[(1, 18980430), (2, 9490215), (3, 6326810), (5, 3796086), (6, 3163405), (7, 2711490), (10, 1898043), (14, 1355745), (15, 1265362), (19, 998970), (21, 903830), (30, 632681), (35, 542298), (38, 499485), (42, 451915), (57, 332990), (67, 283290), (70, 271149), (71, 267330), (95, 199794), (105, 180766), (114, 166495), (133, 142710), (134, 141645), (142, 133665), (190, 99897), (201, 94430), (210, 90383), (213, 89110), (266, 71355), (285, 66598), (335, 56658), (355, 53466), (399, 47570), (402, 47215), (426, 44555), (469, 40470), (497, 38190), (570, 33299), (665, 28542), (670, 28329), (710, 26733), (798, 23785), (938, 20235), (994, 19095), (1005, 18886), (1065, 17822), (1273, 14910), (1330, 14271), (1349, 14070), (1407, 13490), (1491, 12730), (1995, 9514), (2010, 9443), (2130, 8911), (2345, 8094), (2485, 7638), (2546, 7455), (2698, 7035), (2814, 6745), (2982, 6365), (3819, 4970), (3990, 4757), (4047, 4690)]