28156556

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:127

約数の個数: 72

約数和(自身を含む): 58375296

約数和(自身を除く): 30218740

約数列:

[1, 2, 4, 17, 19, 31, 34, 37, 38, 62, 68, 74, 76, 124, 148, 323, 361, 527, 589, 629, 646, 703, 722, 1054, 1147, 1178, 1258, 1292, 1406, 1444, 2108, 2294, 2356, 2516, 2812, 4588, 6137, 10013, 11191, 11951, 12274, 13357, 19499, 20026, 21793, 22382, 23902, 24548, 26714, 38998, 40052, 43586, 44764, 47804, 53428, 77996, 87172, 190247, 227069, 370481, 380494, 414067, 454138, 740962, 760988, 828134, 908276, 1481924, 1656268, 7039139, 14078278, 28156556]

約数ペア:

[(1, 28156556), (2, 14078278), (4, 7039139), (17, 1656268), (19, 1481924), (31, 908276), (34, 828134), (37, 760988), (38, 740962), (62, 454138), (68, 414067), (74, 380494), (76, 370481), (124, 227069), (148, 190247), (323, 87172), (361, 77996), (527, 53428), (589, 47804), (629, 44764), (646, 43586), (703, 40052), (722, 38998), (1054, 26714), (1147, 24548), (1178, 23902), (1258, 22382), (1292, 21793), (1406, 20026), (1444, 19499), (2108, 13357), (2294, 12274), (2356, 11951), (2516, 11191), (2812, 10013), (4588, 6137)]