87898020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:250

約数の個数: 192

約数和(自身を含む): 298991616

約数和(自身を除く): 211093596

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 43, 60, 62, 70, 84, 86, 93, 105, 124, 129, 140, 155, 157, 172, 186, 210, 215, 217, 258, 301, 310, 314, 372, 420, 430, 434, 465, 471, 516, 602, 620, 628, 645, 651, 785, 860, 868, 903, 930, 942, 1085, 1099, 1204, 1290, 1302, 1333, 1505, 1570, 1806, 1860, 1884, 2170, 2198, 2355, 2580, 2604, 2666, 3010, 3140, 3255, 3297, 3612, 3999, 4340, 4396, 4515, 4710, 4867, 5332, 5495, 6020, 6510, 6594, 6665, 6751, 7998, 9030, 9331, 9420, 9734, 10990, 13020, 13188, 13330, 13502, 14601, 15996, 16485, 18060, 18662, 19468, 19995, 20253, 21980, 24335, 26660, 27004, 27993, 29202, 32970, 33755, 34069, 37324, 39990, 40506, 46655, 47257, 48670, 55986, 58404, 65940, 67510, 68138, 73005, 79980, 81012, 93310, 94514, 97340, 101265, 102207, 111972, 135020, 136276, 139965, 141771, 146010, 170345, 186620, 189028, 202530, 204414, 209281, 236285, 279930, 283542, 292020, 340690, 405060, 408828, 418562, 472570, 511035, 559860, 567084, 627843, 681380, 708855, 837124, 945140, 1022070, 1046405, 1255686, 1417710, 1464967, 2044140, 2092810, 2511372, 2835420, 2929934, 3139215, 4185620, 4394901, 5859868, 6278430, 7324835, 8789802, 12556860, 14649670, 17579604, 21974505, 29299340, 43949010, 87898020]

約数ペア:

[(1, 87898020), (2, 43949010), (3, 29299340), (4, 21974505), (5, 17579604), (6, 14649670), (7, 12556860), (10, 8789802), (12, 7324835), (14, 6278430), (15, 5859868), (20, 4394901), (21, 4185620), (28, 3139215), (30, 2929934), (31, 2835420), (35, 2511372), (42, 2092810), (43, 2044140), (60, 1464967), (62, 1417710), (70, 1255686), (84, 1046405), (86, 1022070), (93, 945140), (105, 837124), (124, 708855), (129, 681380), (140, 627843), (155, 567084), (157, 559860), (172, 511035), (186, 472570), (210, 418562), (215, 408828), (217, 405060), (258, 340690), (301, 292020), (310, 283542), (314, 279930), (372, 236285), (420, 209281), (430, 204414), (434, 202530), (465, 189028), (471, 186620), (516, 170345), (602, 146010), (620, 141771), (628, 139965), (645, 136276), (651, 135020), (785, 111972), (860, 102207), (868, 101265), (903, 97340), (930, 94514), (942, 93310), (1085, 81012), (1099, 79980), (1204, 73005), (1290, 68138), (1302, 67510), (1333, 65940), (1505, 58404), (1570, 55986), (1806, 48670), (1860, 47257), (1884, 46655), (2170, 40506), (2198, 39990), (2355, 37324), (2580, 34069), (2604, 33755), (2666, 32970), (3010, 29202), (3140, 27993), (3255, 27004), (3297, 26660), (3612, 24335), (3999, 21980), (4340, 20253), (4396, 19995), (4515, 19468), (4710, 18662), (4867, 18060), (5332, 16485), (5495, 15996), (6020, 14601), (6510, 13502), (6594, 13330), (6665, 13188), (6751, 13020), (7998, 10990), (9030, 9734), (9331, 9420)]