28797516

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^3\times {\mathrm{601}}^1$

素因数の和:644

約数の個数: 72

約数和(自身を含む): 80200848

約数和(自身を除く): 51403332

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 121, 132, 198, 242, 363, 396, 484, 601, 726, 1089, 1202, 1331, 1452, 1803, 2178, 2404, 2662, 3606, 3993, 4356, 5324, 5409, 6611, 7212, 7986, 10818, 11979, 13222, 15972, 19833, 21636, 23958, 26444, 39666, 47916, 59499, 72721, 79332, 118998, 145442, 218163, 237996, 290884, 436326, 654489, 799931, 872652, 1308978, 1599862, 2399793, 2617956, 3199724, 4799586, 7199379, 9599172, 14398758, 28797516]

約数ペア:

[(1, 28797516), (2, 14398758), (3, 9599172), (4, 7199379), (6, 4799586), (9, 3199724), (11, 2617956), (12, 2399793), (18, 1599862), (22, 1308978), (33, 872652), (36, 799931), (44, 654489), (66, 436326), (99, 290884), (121, 237996), (132, 218163), (198, 145442), (242, 118998), (363, 79332), (396, 72721), (484, 59499), (601, 47916), (726, 39666), (1089, 26444), (1202, 23958), (1331, 21636), (1452, 19833), (1803, 15972), (2178, 13222), (2404, 11979), (2662, 10818), (3606, 7986), (3993, 7212), (4356, 6611), (5324, 5409)]