145471840

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{211}}^1$

素因数の和:396

約数の個数: 96

約数和(自身を含む): 359009280

約数和(自身を除く): 213537440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 139, 155, 160, 211, 248, 278, 310, 422, 496, 556, 620, 695, 844, 992, 1055, 1112, 1240, 1390, 1688, 2110, 2224, 2480, 2780, 3376, 4220, 4309, 4448, 4960, 5560, 6541, 6752, 8440, 8618, 11120, 13082, 16880, 17236, 21545, 22240, 26164, 29329, 32705, 33760, 34472, 43090, 52328, 58658, 65410, 68944, 86180, 104656, 117316, 130820, 137888, 146645, 172360, 209312, 234632, 261640, 293290, 344720, 469264, 523280, 586580, 689440, 909199, 938528, 1046560, 1173160, 1818398, 2346320, 3636796, 4545995, 4692640, 7273592, 9091990, 14547184, 18183980, 29094368, 36367960, 72735920, 145471840]

約数ペア:

[(1, 145471840), (2, 72735920), (4, 36367960), (5, 29094368), (8, 18183980), (10, 14547184), (16, 9091990), (20, 7273592), (31, 4692640), (32, 4545995), (40, 3636796), (62, 2346320), (80, 1818398), (124, 1173160), (139, 1046560), (155, 938528), (160, 909199), (211, 689440), (248, 586580), (278, 523280), (310, 469264), (422, 344720), (496, 293290), (556, 261640), (620, 234632), (695, 209312), (844, 172360), (992, 146645), (1055, 137888), (1112, 130820), (1240, 117316), (1390, 104656), (1688, 86180), (2110, 68944), (2224, 65410), (2480, 58658), (2780, 52328), (3376, 43090), (4220, 34472), (4309, 33760), (4448, 32705), (4960, 29329), (5560, 26164), (6541, 22240), (6752, 21545), (8440, 17236), (8618, 16880), (11120, 13082)]