56399980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1$

素因数の和:288

約数の個数: 144

約数和(自身を含む): 156854880

約数和(自身を除く): 100454900

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 19, 20, 26, 28, 35, 38, 49, 52, 65, 70, 76, 91, 95, 98, 130, 133, 140, 182, 190, 196, 233, 245, 247, 260, 266, 364, 380, 455, 466, 490, 494, 532, 637, 665, 910, 931, 932, 980, 988, 1165, 1235, 1274, 1330, 1631, 1729, 1820, 1862, 2330, 2470, 2548, 2660, 3029, 3185, 3262, 3458, 3724, 4427, 4655, 4660, 4940, 6058, 6370, 6524, 6916, 8155, 8645, 8854, 9310, 11417, 12103, 12116, 12740, 15145, 16310, 17290, 17708, 18620, 21203, 22135, 22834, 24206, 30290, 30989, 32620, 34580, 42406, 44270, 45668, 48412, 57085, 57551, 60515, 60580, 61978, 84812, 88540, 106015, 114170, 115102, 121030, 123956, 148421, 154945, 212030, 216923, 228340, 230204, 242060, 287755, 296842, 309890, 402857, 424060, 433846, 575510, 593684, 619780, 742105, 805714, 867692, 1084615, 1151020, 1484210, 1611428, 2014285, 2169230, 2819999, 2968420, 4028570, 4338460, 5639998, 8057140, 11279996, 14099995, 28199990, 56399980]

約数ペア:

[(1, 56399980), (2, 28199990), (4, 14099995), (5, 11279996), (7, 8057140), (10, 5639998), (13, 4338460), (14, 4028570), (19, 2968420), (20, 2819999), (26, 2169230), (28, 2014285), (35, 1611428), (38, 1484210), (49, 1151020), (52, 1084615), (65, 867692), (70, 805714), (76, 742105), (91, 619780), (95, 593684), (98, 575510), (130, 433846), (133, 424060), (140, 402857), (182, 309890), (190, 296842), (196, 287755), (233, 242060), (245, 230204), (247, 228340), (260, 216923), (266, 212030), (364, 154945), (380, 148421), (455, 123956), (466, 121030), (490, 115102), (494, 114170), (532, 106015), (637, 88540), (665, 84812), (910, 61978), (931, 60580), (932, 60515), (980, 57551), (988, 57085), (1165, 48412), (1235, 45668), (1274, 44270), (1330, 42406), (1631, 34580), (1729, 32620), (1820, 30989), (1862, 30290), (2330, 24206), (2470, 22834), (2548, 22135), (2660, 21203), (3029, 18620), (3185, 17708), (3262, 17290), (3458, 16310), (3724, 15145), (4427, 12740), (4655, 12116), (4660, 12103), (4940, 11417), (6058, 9310), (6370, 8854), (6524, 8645), (6916, 8155)]