881927560

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{397}}^1$

素因数の和:543

約数の個数: 128

約数和(自身を含む): 2177856000

約数和(自身を除く): 1295928440

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 37, 38, 40, 74, 76, 79, 95, 148, 152, 158, 185, 190, 296, 316, 370, 380, 395, 397, 632, 703, 740, 760, 790, 794, 1406, 1480, 1501, 1580, 1588, 1985, 2812, 2923, 3002, 3160, 3176, 3515, 3970, 5624, 5846, 6004, 7030, 7505, 7543, 7940, 11692, 12008, 14060, 14615, 14689, 15010, 15086, 15880, 23384, 28120, 29230, 29378, 30020, 30172, 31363, 37715, 55537, 58460, 58756, 60040, 60344, 62726, 73445, 75430, 111074, 116920, 117512, 125452, 146890, 150860, 156815, 222148, 250904, 277685, 279091, 293780, 301720, 313630, 444296, 555370, 558182, 587560, 595897, 627260, 1110740, 1116364, 1160431, 1191794, 1254520, 1395455, 2221480, 2232728, 2320862, 2383588, 2790910, 2979485, 4641724, 4767176, 5581820, 5802155, 5958970, 9283448, 11163640, 11604310, 11917940, 22048189, 23208620, 23835880, 44096378, 46417240, 88192756, 110240945, 176385512, 220481890, 440963780, 881927560]

約数ペア:

[(1, 881927560), (2, 440963780), (4, 220481890), (5, 176385512), (8, 110240945), (10, 88192756), (19, 46417240), (20, 44096378), (37, 23835880), (38, 23208620), (40, 22048189), (74, 11917940), (76, 11604310), (79, 11163640), (95, 9283448), (148, 5958970), (152, 5802155), (158, 5581820), (185, 4767176), (190, 4641724), (296, 2979485), (316, 2790910), (370, 2383588), (380, 2320862), (395, 2232728), (397, 2221480), (632, 1395455), (703, 1254520), (740, 1191794), (760, 1160431), (790, 1116364), (794, 1110740), (1406, 627260), (1480, 595897), (1501, 587560), (1580, 558182), (1588, 555370), (1985, 444296), (2812, 313630), (2923, 301720), (3002, 293780), (3160, 279091), (3176, 277685), (3515, 250904), (3970, 222148), (5624, 156815), (5846, 150860), (6004, 146890), (7030, 125452), (7505, 117512), (7543, 116920), (7940, 111074), (11692, 75430), (12008, 73445), (14060, 62726), (14615, 60344), (14689, 60040), (15010, 58756), (15086, 58460), (15880, 55537), (23384, 37715), (28120, 31363), (29230, 30172), (29378, 30020)]