645927840

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{448561}}^1$

素因数の和:448582

約数の個数: 72

約数和(自身を含む): 2204233668

約数和(自身を除く): 1558305828

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 448561, 897122, 1345683, 1794244, 2242805, 2691366, 3588488, 4037049, 4485610, 5382732, 6728415, 7176976, 8074098, 8971220, 10765464, 13456830, 14353952, 16148196, 17942440, 20185245, 21530928, 26913660, 32296392, 35884880, 40370490, 43061856, 53827320, 64592784, 71769760, 80740980, 107654640, 129185568, 161481960, 215309280, 322963920, 645927840]

約数ペア:

[(1, 645927840), (2, 322963920), (3, 215309280), (4, 161481960), (5, 129185568), (6, 107654640), (8, 80740980), (9, 71769760), (10, 64592784), (12, 53827320), (15, 43061856), (16, 40370490), (18, 35884880), (20, 32296392), (24, 26913660), (30, 21530928), (32, 20185245), (36, 17942440), (40, 16148196), (45, 14353952), (48, 13456830), (60, 10765464), (72, 8971220), (80, 8074098), (90, 7176976), (96, 6728415), (120, 5382732), (144, 4485610), (160, 4037049), (180, 3588488), (240, 2691366), (288, 2242805), (360, 1794244), (480, 1345683), (720, 897122), (1440, 448561)]