128974320

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{661}}^1$

素因数の和:951

約数の個数: 120

約数和(自身を含む): 435394752

約数和(自身を除く): 306420432

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 271, 360, 542, 661, 720, 813, 1084, 1322, 1355, 1626, 1983, 2168, 2439, 2644, 2710, 3252, 3305, 3966, 4065, 4336, 4878, 5288, 5420, 5949, 6504, 6610, 7932, 8130, 9756, 9915, 10576, 10840, 11898, 12195, 13008, 13220, 15864, 16260, 19512, 19830, 21680, 23796, 24390, 26440, 29745, 31728, 32520, 39024, 39660, 47592, 48780, 52880, 59490, 65040, 79320, 95184, 97560, 118980, 158640, 179131, 195120, 237960, 358262, 475920, 537393, 716524, 895655, 1074786, 1433048, 1612179, 1791310, 2149572, 2686965, 2866096, 3224358, 3582620, 4299144, 5373930, 6448716, 7165240, 8060895, 8598288, 10747860, 12897432, 14330480, 16121790, 21495720, 25794864, 32243580, 42991440, 64487160, 128974320]

約数ペア:

[(1, 128974320), (2, 64487160), (3, 42991440), (4, 32243580), (5, 25794864), (6, 21495720), (8, 16121790), (9, 14330480), (10, 12897432), (12, 10747860), (15, 8598288), (16, 8060895), (18, 7165240), (20, 6448716), (24, 5373930), (30, 4299144), (36, 3582620), (40, 3224358), (45, 2866096), (48, 2686965), (60, 2149572), (72, 1791310), (80, 1612179), (90, 1433048), (120, 1074786), (144, 895655), (180, 716524), (240, 537393), (271, 475920), (360, 358262), (542, 237960), (661, 195120), (720, 179131), (813, 158640), (1084, 118980), (1322, 97560), (1355, 95184), (1626, 79320), (1983, 65040), (2168, 59490), (2439, 52880), (2644, 48780), (2710, 47592), (3252, 39660), (3305, 39024), (3966, 32520), (4065, 31728), (4336, 29745), (4878, 26440), (5288, 24390), (5420, 23796), (5949, 21680), (6504, 19830), (6610, 19512), (7932, 16260), (8130, 15864), (9756, 13220), (9915, 13008), (10576, 12195), (10840, 11898)]