278462100

素因数分解:

$2^2\times 3^1\times 5^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{997}}^1$

素因数の和:1047

約数の個数: 216

約数和(自身を含む): 987540960

約数和(自身を除く): 709078860

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 25, 28, 30, 35, 38, 42, 49, 50, 57, 60, 70, 75, 76, 84, 95, 98, 100, 105, 114, 133, 140, 147, 150, 175, 190, 196, 210, 228, 245, 266, 285, 294, 300, 350, 380, 399, 420, 475, 490, 525, 532, 570, 588, 665, 700, 735, 798, 931, 950, 980, 997, 1050, 1140, 1225, 1330, 1425, 1470, 1596, 1862, 1900, 1994, 1995, 2100, 2450, 2660, 2793, 2850, 2940, 2991, 3325, 3675, 3724, 3988, 3990, 4655, 4900, 4985, 5586, 5700, 5982, 6650, 6979, 7350, 7980, 9310, 9970, 9975, 11172, 11964, 13300, 13958, 13965, 14700, 14955, 18620, 18943, 19940, 19950, 20937, 23275, 24925, 27916, 27930, 29910, 34895, 37886, 39900, 41874, 46550, 48853, 49850, 55860, 56829, 59820, 69790, 69825, 74775, 75772, 83748, 93100, 94715, 97706, 99700, 104685, 113658, 132601, 139580, 139650, 146559, 149550, 174475, 189430, 195412, 209370, 227316, 244265, 265202, 279300, 284145, 293118, 299100, 348950, 378860, 397803, 418740, 473575, 488530, 523425, 530404, 568290, 586236, 663005, 697900, 732795, 795606, 928207, 947150, 977060, 1046850, 1136580, 1221325, 1326010, 1420725, 1465590, 1591212, 1856414, 1894300, 1989015, 2093700, 2442650, 2652020, 2784621, 2841450, 2931180, 3315025, 3663975, 3712828, 3978030, 4641035, 4885300, 5569242, 5682900, 6630050, 7327950, 7956060, 9282070, 9945075, 11138484, 13260100, 13923105, 14655900, 18564140, 19890150, 23205175, 27846210, 39780300, 46410350, 55692420, 69615525, 92820700, 139231050, 278462100]

約数ペア:

[(1, 278462100), (2, 139231050), (3, 92820700), (4, 69615525), (5, 55692420), (6, 46410350), (7, 39780300), (10, 27846210), (12, 23205175), (14, 19890150), (15, 18564140), (19, 14655900), (20, 13923105), (21, 13260100), (25, 11138484), (28, 9945075), (30, 9282070), (35, 7956060), (38, 7327950), (42, 6630050), (49, 5682900), (50, 5569242), (57, 4885300), (60, 4641035), (70, 3978030), (75, 3712828), (76, 3663975), (84, 3315025), (95, 2931180), (98, 2841450), (100, 2784621), (105, 2652020), (114, 2442650), (133, 2093700), (140, 1989015), (147, 1894300), (150, 1856414), (175, 1591212), (190, 1465590), (196, 1420725), (210, 1326010), (228, 1221325), (245, 1136580), (266, 1046850), (285, 977060), (294, 947150), (300, 928207), (350, 795606), (380, 732795), (399, 697900), (420, 663005), (475, 586236), (490, 568290), (525, 530404), (532, 523425), (570, 488530), (588, 473575), (665, 418740), (700, 397803), (735, 378860), (798, 348950), (931, 299100), (950, 293118), (980, 284145), (997, 279300), (1050, 265202), (1140, 244265), (1225, 227316), (1330, 209370), (1425, 195412), (1470, 189430), (1596, 174475), (1862, 149550), (1900, 146559), (1994, 139650), (1995, 139580), (2100, 132601), (2450, 113658), (2660, 104685), (2793, 99700), (2850, 97706), (2940, 94715), (2991, 93100), (3325, 83748), (3675, 75772), (3724, 74775), (3988, 69825), (3990, 69790), (4655, 59820), (4900, 56829), (4985, 55860), (5586, 49850), (5700, 48853), (5982, 46550), (6650, 41874), (6979, 39900), (7350, 37886), (7980, 34895), (9310, 29910), (9970, 27930), (9975, 27916), (11172, 24925), (11964, 23275), (13300, 20937), (13958, 19950), (13965, 19940), (14700, 18943), (14955, 18620)]