78931840

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1$

素因数の和:264

約数の個数: 128

約数和(自身を含む): 208202400

約数和(自身を除く): 129270560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 53, 64, 65, 80, 104, 106, 128, 130, 160, 179, 208, 212, 260, 265, 320, 358, 416, 424, 520, 530, 640, 689, 716, 832, 848, 895, 1040, 1060, 1378, 1432, 1664, 1696, 1790, 2080, 2120, 2327, 2756, 2864, 3392, 3445, 3580, 4160, 4240, 4654, 5512, 5728, 6784, 6890, 7160, 8320, 8480, 9308, 9487, 11024, 11456, 11635, 13780, 14320, 16960, 18616, 18974, 22048, 22912, 23270, 27560, 28640, 33920, 37232, 37948, 44096, 46540, 47435, 55120, 57280, 74464, 75896, 88192, 93080, 94870, 110240, 114560, 123331, 148928, 151792, 186160, 189740, 220480, 246662, 297856, 303584, 372320, 379480, 440960, 493324, 607168, 616655, 744640, 758960, 986648, 1214336, 1233310, 1489280, 1517920, 1973296, 2466620, 3035840, 3946592, 4933240, 6071680, 7893184, 9866480, 15786368, 19732960, 39465920, 78931840]

約数ペア:

[(1, 78931840), (2, 39465920), (4, 19732960), (5, 15786368), (8, 9866480), (10, 7893184), (13, 6071680), (16, 4933240), (20, 3946592), (26, 3035840), (32, 2466620), (40, 1973296), (52, 1517920), (53, 1489280), (64, 1233310), (65, 1214336), (80, 986648), (104, 758960), (106, 744640), (128, 616655), (130, 607168), (160, 493324), (179, 440960), (208, 379480), (212, 372320), (260, 303584), (265, 297856), (320, 246662), (358, 220480), (416, 189740), (424, 186160), (520, 151792), (530, 148928), (640, 123331), (689, 114560), (716, 110240), (832, 94870), (848, 93080), (895, 88192), (1040, 75896), (1060, 74464), (1378, 57280), (1432, 55120), (1664, 47435), (1696, 46540), (1790, 44096), (2080, 37948), (2120, 37232), (2327, 33920), (2756, 28640), (2864, 27560), (3392, 23270), (3445, 22912), (3580, 22048), (4160, 18974), (4240, 18616), (4654, 16960), (5512, 14320), (5728, 13780), (6784, 11635), (6890, 11456), (7160, 11024), (8320, 9487), (8480, 9308)]