131968720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{227}}^1$

素因数の和:309

約数の個数: 120

約数和(自身を含む): 341469216

約数和(自身を除く): 209500496

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 43, 52, 65, 80, 86, 104, 130, 169, 172, 208, 215, 227, 260, 338, 344, 430, 454, 520, 559, 676, 688, 845, 860, 908, 1040, 1118, 1135, 1352, 1690, 1720, 1816, 2236, 2270, 2704, 2795, 2951, 3380, 3440, 3632, 4472, 4540, 5590, 5902, 6760, 7267, 8944, 9080, 9761, 11180, 11804, 13520, 14534, 14755, 18160, 19522, 22360, 23608, 29068, 29510, 36335, 38363, 39044, 44720, 47216, 48805, 58136, 59020, 72670, 76726, 78088, 97610, 116272, 118040, 126893, 145340, 153452, 156176, 191815, 195220, 236080, 253786, 290680, 306904, 383630, 390440, 507572, 581360, 613808, 634465, 767260, 780880, 1015144, 1268930, 1534520, 1649609, 2030288, 2537860, 3069040, 3299218, 5075720, 6598436, 8248045, 10151440, 13196872, 16496090, 26393744, 32992180, 65984360, 131968720]

約数ペア:

[(1, 131968720), (2, 65984360), (4, 32992180), (5, 26393744), (8, 16496090), (10, 13196872), (13, 10151440), (16, 8248045), (20, 6598436), (26, 5075720), (40, 3299218), (43, 3069040), (52, 2537860), (65, 2030288), (80, 1649609), (86, 1534520), (104, 1268930), (130, 1015144), (169, 780880), (172, 767260), (208, 634465), (215, 613808), (227, 581360), (260, 507572), (338, 390440), (344, 383630), (430, 306904), (454, 290680), (520, 253786), (559, 236080), (676, 195220), (688, 191815), (845, 156176), (860, 153452), (908, 145340), (1040, 126893), (1118, 118040), (1135, 116272), (1352, 97610), (1690, 78088), (1720, 76726), (1816, 72670), (2236, 59020), (2270, 58136), (2704, 48805), (2795, 47216), (2951, 44720), (3380, 39044), (3440, 38363), (3632, 36335), (4472, 29510), (4540, 29068), (5590, 23608), (5902, 22360), (6760, 19522), (7267, 18160), (8944, 14755), (9080, 14534), (9761, 13520), (11180, 11804)]