661569388

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1\times {\mathrm{293}}^1$

素因数の和:598

約数の個数: 48

約数和(自身を含む): 1217018880

約数和(自身を除く): 555449492

約数列:

[1, 2, 4, 31, 62, 124, 131, 139, 262, 278, 293, 524, 556, 586, 1172, 4061, 4309, 8122, 8618, 9083, 16244, 17236, 18166, 18209, 36332, 36418, 38383, 40727, 72836, 76766, 81454, 153532, 162908, 564479, 1128958, 1189873, 1262537, 2257916, 2379746, 2525074, 4759492, 5050148, 5335237, 10670474, 21340948, 165392347, 330784694, 661569388]

約数ペア:

[(1, 661569388), (2, 330784694), (4, 165392347), (31, 21340948), (62, 10670474), (124, 5335237), (131, 5050148), (139, 4759492), (262, 2525074), (278, 2379746), (293, 2257916), (524, 1262537), (556, 1189873), (586, 1128958), (1172, 564479), (4061, 162908), (4309, 153532), (8122, 81454), (8618, 76766), (9083, 72836), (16244, 40727), (17236, 38383), (18166, 36418), (18209, 36332)]