181991520

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{2689}}^1$

素因数の和:2757

約数の個数: 144

約数和(自身を含む): 634495680

約数和(自身を除く): 452504160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 47, 48, 60, 72, 80, 90, 94, 96, 120, 141, 144, 160, 180, 188, 235, 240, 282, 288, 360, 376, 423, 470, 480, 564, 705, 720, 752, 846, 940, 1128, 1410, 1440, 1504, 1692, 1880, 2115, 2256, 2689, 2820, 3384, 3760, 4230, 4512, 5378, 5640, 6768, 7520, 8067, 8460, 10756, 11280, 13445, 13536, 16134, 16920, 21512, 22560, 24201, 26890, 32268, 33840, 40335, 43024, 48402, 53780, 64536, 67680, 80670, 86048, 96804, 107560, 121005, 126383, 129072, 161340, 193608, 215120, 242010, 252766, 258144, 322680, 379149, 387216, 430240, 484020, 505532, 631915, 645360, 758298, 774432, 968040, 1011064, 1137447, 1263830, 1290720, 1516596, 1895745, 1936080, 2022128, 2274894, 2527660, 3033192, 3791490, 3872160, 4044256, 4549788, 5055320, 5687235, 6066384, 7582980, 9099576, 10110640, 11374470, 12132768, 15165960, 18199152, 20221280, 22748940, 30331920, 36398304, 45497880, 60663840, 90995760, 181991520]

約数ペア:

[(1, 181991520), (2, 90995760), (3, 60663840), (4, 45497880), (5, 36398304), (6, 30331920), (8, 22748940), (9, 20221280), (10, 18199152), (12, 15165960), (15, 12132768), (16, 11374470), (18, 10110640), (20, 9099576), (24, 7582980), (30, 6066384), (32, 5687235), (36, 5055320), (40, 4549788), (45, 4044256), (47, 3872160), (48, 3791490), (60, 3033192), (72, 2527660), (80, 2274894), (90, 2022128), (94, 1936080), (96, 1895745), (120, 1516596), (141, 1290720), (144, 1263830), (160, 1137447), (180, 1011064), (188, 968040), (235, 774432), (240, 758298), (282, 645360), (288, 631915), (360, 505532), (376, 484020), (423, 430240), (470, 387216), (480, 379149), (564, 322680), (705, 258144), (720, 252766), (752, 242010), (846, 215120), (940, 193608), (1128, 161340), (1410, 129072), (1440, 126383), (1504, 121005), (1692, 107560), (1880, 96804), (2115, 86048), (2256, 80670), (2689, 67680), (2820, 64536), (3384, 53780), (3760, 48402), (4230, 43024), (4512, 40335), (5378, 33840), (5640, 32268), (6768, 26890), (7520, 24201), (8067, 22560), (8460, 21512), (10756, 16920), (11280, 16134), (13445, 13536)]