21723960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{463}}^1$

素因数の和:517

約数の個数: 128

約数和(自身を含む): 72161280

約数和(自身を除く): 50437320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 23, 24, 30, 34, 40, 46, 51, 60, 68, 69, 85, 92, 102, 115, 120, 136, 138, 170, 184, 204, 230, 255, 276, 340, 345, 391, 408, 460, 463, 510, 552, 680, 690, 782, 920, 926, 1020, 1173, 1380, 1389, 1564, 1852, 1955, 2040, 2315, 2346, 2760, 2778, 3128, 3704, 3910, 4630, 4692, 5556, 5865, 6945, 7820, 7871, 9260, 9384, 10649, 11112, 11730, 13890, 15640, 15742, 18520, 21298, 23460, 23613, 27780, 31484, 31947, 39355, 42596, 46920, 47226, 53245, 55560, 62968, 63894, 78710, 85192, 94452, 106490, 118065, 127788, 157420, 159735, 181033, 188904, 212980, 236130, 255576, 314840, 319470, 362066, 425960, 472260, 543099, 638940, 724132, 905165, 944520, 1086198, 1277880, 1448264, 1810330, 2172396, 2715495, 3620660, 4344792, 5430990, 7241320, 10861980, 21723960]

約数ペア:

[(1, 21723960), (2, 10861980), (3, 7241320), (4, 5430990), (5, 4344792), (6, 3620660), (8, 2715495), (10, 2172396), (12, 1810330), (15, 1448264), (17, 1277880), (20, 1086198), (23, 944520), (24, 905165), (30, 724132), (34, 638940), (40, 543099), (46, 472260), (51, 425960), (60, 362066), (68, 319470), (69, 314840), (85, 255576), (92, 236130), (102, 212980), (115, 188904), (120, 181033), (136, 159735), (138, 157420), (170, 127788), (184, 118065), (204, 106490), (230, 94452), (255, 85192), (276, 78710), (340, 63894), (345, 62968), (391, 55560), (408, 53245), (460, 47226), (463, 46920), (510, 42596), (552, 39355), (680, 31947), (690, 31484), (782, 27780), (920, 23613), (926, 23460), (1020, 21298), (1173, 18520), (1380, 15742), (1389, 15640), (1564, 13890), (1852, 11730), (1955, 11112), (2040, 10649), (2315, 9384), (2346, 9260), (2760, 7871), (2778, 7820), (3128, 6945), (3704, 5865), (3910, 5556), (4630, 4692)]