221975425

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1\times {\mathrm{229}}^1$

素因数の和:466

約数の個数: 48

約数和(自身を含む): 328550400

約数和(自身を除く): 106574975

約数列:

[1, 5, 7, 25, 29, 35, 145, 175, 191, 203, 229, 725, 955, 1015, 1145, 1337, 1603, 4775, 5075, 5539, 5725, 6641, 6685, 8015, 27695, 33205, 33425, 38773, 40075, 43739, 46487, 138475, 166025, 193865, 218695, 232435, 306173, 969325, 1093475, 1162175, 1268431, 1530865, 6342155, 7654325, 8879017, 31710775, 44395085, 221975425]

約数ペア:

[(1, 221975425), (5, 44395085), (7, 31710775), (25, 8879017), (29, 7654325), (35, 6342155), (145, 1530865), (175, 1268431), (191, 1162175), (203, 1093475), (229, 969325), (725, 306173), (955, 232435), (1015, 218695), (1145, 193865), (1337, 166025), (1603, 138475), (4775, 46487), (5075, 43739), (5539, 40075), (5725, 38773), (6641, 33425), (6685, 33205), (8015, 27695)]