1285920

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1$

素因数の和:87

約数の個数: 144

約数和(自身を含む): 4717440

約数和(自身を除く): 3431520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 32, 36, 38, 40, 45, 47, 48, 57, 60, 72, 76, 80, 90, 94, 95, 96, 114, 120, 141, 144, 152, 160, 171, 180, 188, 190, 228, 235, 240, 282, 285, 288, 304, 342, 360, 376, 380, 423, 456, 470, 480, 564, 570, 608, 684, 705, 720, 752, 760, 846, 855, 893, 912, 940, 1128, 1140, 1368, 1410, 1440, 1504, 1520, 1692, 1710, 1786, 1824, 1880, 2115, 2256, 2280, 2679, 2736, 2820, 3040, 3384, 3420, 3572, 3760, 4230, 4465, 4512, 4560, 5358, 5472, 5640, 6768, 6840, 7144, 7520, 8037, 8460, 8930, 9120, 10716, 11280, 13395, 13536, 13680, 14288, 16074, 16920, 17860, 21432, 22560, 26790, 27360, 28576, 32148, 33840, 35720, 40185, 42864, 53580, 64296, 67680, 71440, 80370, 85728, 107160, 128592, 142880, 160740, 214320, 257184, 321480, 428640, 642960, 1285920]

約数ペア:

[(1, 1285920), (2, 642960), (3, 428640), (4, 321480), (5, 257184), (6, 214320), (8, 160740), (9, 142880), (10, 128592), (12, 107160), (15, 85728), (16, 80370), (18, 71440), (19, 67680), (20, 64296), (24, 53580), (30, 42864), (32, 40185), (36, 35720), (38, 33840), (40, 32148), (45, 28576), (47, 27360), (48, 26790), (57, 22560), (60, 21432), (72, 17860), (76, 16920), (80, 16074), (90, 14288), (94, 13680), (95, 13536), (96, 13395), (114, 11280), (120, 10716), (141, 9120), (144, 8930), (152, 8460), (160, 8037), (171, 7520), (180, 7144), (188, 6840), (190, 6768), (228, 5640), (235, 5472), (240, 5358), (282, 4560), (285, 4512), (288, 4465), (304, 4230), (342, 3760), (360, 3572), (376, 3420), (380, 3384), (423, 3040), (456, 2820), (470, 2736), (480, 2679), (564, 2280), (570, 2256), (608, 2115), (684, 1880), (705, 1824), (720, 1786), (752, 1710), (760, 1692), (846, 1520), (855, 1504), (893, 1440), (912, 1410), (940, 1368), (1128, 1140)]