281409380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{1579}}^1$

素因数の和:1681

約数の個数: 96

約数和(自身を含む): 721996800

約数和(自身を除く): 440587420

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 67, 70, 76, 95, 133, 134, 140, 190, 266, 268, 335, 380, 469, 532, 665, 670, 938, 1273, 1330, 1340, 1579, 1876, 2345, 2546, 2660, 3158, 4690, 5092, 6316, 6365, 7895, 8911, 9380, 11053, 12730, 15790, 17822, 22106, 25460, 30001, 31580, 35644, 44212, 44555, 55265, 60002, 89110, 105793, 110530, 120004, 150005, 178220, 210007, 211586, 221060, 300010, 420014, 423172, 528965, 600020, 740551, 840028, 1050035, 1057930, 1481102, 2010067, 2100070, 2115860, 2962204, 3702755, 4020134, 4200140, 7405510, 8040268, 10050335, 14070469, 14811020, 20100670, 28140938, 40201340, 56281876, 70352345, 140704690, 281409380]

約数ペア:

[(1, 281409380), (2, 140704690), (4, 70352345), (5, 56281876), (7, 40201340), (10, 28140938), (14, 20100670), (19, 14811020), (20, 14070469), (28, 10050335), (35, 8040268), (38, 7405510), (67, 4200140), (70, 4020134), (76, 3702755), (95, 2962204), (133, 2115860), (134, 2100070), (140, 2010067), (190, 1481102), (266, 1057930), (268, 1050035), (335, 840028), (380, 740551), (469, 600020), (532, 528965), (665, 423172), (670, 420014), (938, 300010), (1273, 221060), (1330, 211586), (1340, 210007), (1579, 178220), (1876, 150005), (2345, 120004), (2546, 110530), (2660, 105793), (3158, 89110), (4690, 60002), (5092, 55265), (6316, 44555), (6365, 44212), (7895, 35644), (8911, 31580), (9380, 30001), (11053, 25460), (12730, 22106), (15790, 17822)]