80343340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{257}}^1$

素因数の和:320

約数の個数: 144

約数和(自身を含む): 222354720

約数和(自身を除く): 142011380

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 29, 35, 44, 49, 55, 58, 70, 77, 98, 110, 116, 140, 145, 154, 196, 203, 220, 245, 257, 290, 308, 319, 385, 406, 490, 514, 539, 580, 638, 770, 812, 980, 1015, 1028, 1078, 1276, 1285, 1421, 1540, 1595, 1799, 2030, 2156, 2233, 2570, 2695, 2827, 2842, 3190, 3598, 4060, 4466, 5140, 5390, 5654, 5684, 6380, 7105, 7196, 7453, 8932, 8995, 10780, 11165, 11308, 12593, 14135, 14210, 14906, 15631, 17990, 19789, 22330, 25186, 28270, 28420, 29812, 31262, 35980, 37265, 39578, 44660, 50372, 52171, 56540, 62524, 62965, 74530, 78155, 79156, 81983, 98945, 104342, 125930, 138523, 149060, 156310, 163966, 197890, 208684, 251860, 260855, 277046, 312620, 327932, 365197, 395780, 409915, 521710, 554092, 573881, 692615, 730394, 819830, 1043420, 1147762, 1385230, 1460788, 1639660, 1825985, 2295524, 2770460, 2869405, 3651970, 4017167, 5738810, 7303940, 8034334, 11477620, 16068668, 20085835, 40171670, 80343340]

約数ペア:

[(1, 80343340), (2, 40171670), (4, 20085835), (5, 16068668), (7, 11477620), (10, 8034334), (11, 7303940), (14, 5738810), (20, 4017167), (22, 3651970), (28, 2869405), (29, 2770460), (35, 2295524), (44, 1825985), (49, 1639660), (55, 1460788), (58, 1385230), (70, 1147762), (77, 1043420), (98, 819830), (110, 730394), (116, 692615), (140, 573881), (145, 554092), (154, 521710), (196, 409915), (203, 395780), (220, 365197), (245, 327932), (257, 312620), (290, 277046), (308, 260855), (319, 251860), (385, 208684), (406, 197890), (490, 163966), (514, 156310), (539, 149060), (580, 138523), (638, 125930), (770, 104342), (812, 98945), (980, 81983), (1015, 79156), (1028, 78155), (1078, 74530), (1276, 62965), (1285, 62524), (1421, 56540), (1540, 52171), (1595, 50372), (1799, 44660), (2030, 39578), (2156, 37265), (2233, 35980), (2570, 31262), (2695, 29812), (2827, 28420), (2842, 28270), (3190, 25186), (3598, 22330), (4060, 19789), (4466, 17990), (5140, 15631), (5390, 14906), (5654, 14210), (5684, 14135), (6380, 12593), (7105, 11308), (7196, 11165), (7453, 10780), (8932, 8995)]