397987520

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1399}}^1$

素因数の和:1550

約数の個数: 112

約数和(自身を含む): 1092403200

約数和(自身を除く): 694415680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 127, 140, 160, 224, 254, 280, 320, 448, 508, 560, 635, 889, 1016, 1120, 1270, 1399, 1778, 2032, 2240, 2540, 2798, 3556, 4064, 4445, 5080, 5596, 6995, 7112, 8128, 8890, 9793, 10160, 11192, 13990, 14224, 17780, 19586, 20320, 22384, 27980, 28448, 35560, 39172, 40640, 44768, 48965, 55960, 56896, 71120, 78344, 89536, 97930, 111920, 142240, 156688, 177673, 195860, 223840, 284480, 313376, 355346, 391720, 447680, 626752, 710692, 783440, 888365, 1243711, 1421384, 1566880, 1776730, 2487422, 2842768, 3133760, 3553460, 4974844, 5685536, 6218555, 7106920, 9949688, 11371072, 12437110, 14213840, 19899376, 24874220, 28427680, 39798752, 49748440, 56855360, 79597504, 99496880, 198993760, 397987520]

約数ペア:

[(1, 397987520), (2, 198993760), (4, 99496880), (5, 79597504), (7, 56855360), (8, 49748440), (10, 39798752), (14, 28427680), (16, 24874220), (20, 19899376), (28, 14213840), (32, 12437110), (35, 11371072), (40, 9949688), (56, 7106920), (64, 6218555), (70, 5685536), (80, 4974844), (112, 3553460), (127, 3133760), (140, 2842768), (160, 2487422), (224, 1776730), (254, 1566880), (280, 1421384), (320, 1243711), (448, 888365), (508, 783440), (560, 710692), (635, 626752), (889, 447680), (1016, 391720), (1120, 355346), (1270, 313376), (1399, 284480), (1778, 223840), (2032, 195860), (2240, 177673), (2540, 156688), (2798, 142240), (3556, 111920), (4064, 97930), (4445, 89536), (5080, 78344), (5596, 71120), (6995, 56896), (7112, 55960), (8128, 48965), (8890, 44768), (9793, 40640), (10160, 39172), (11192, 35560), (13990, 28448), (14224, 27980), (17780, 22384), (19586, 20320)]