201209900

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{641}}^1$

素因数の和:771

約数の個数: 72

約数和(自身を含む): 453606384

約数和(自身を除く): 252396484

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 73, 86, 100, 146, 172, 215, 292, 365, 430, 641, 730, 860, 1075, 1282, 1460, 1825, 2150, 2564, 3139, 3205, 3650, 4300, 6278, 6410, 7300, 12556, 12820, 15695, 16025, 27563, 31390, 32050, 46793, 55126, 62780, 64100, 78475, 93586, 110252, 137815, 156950, 187172, 233965, 275630, 313900, 467930, 551260, 689075, 935860, 1169825, 1378150, 2012099, 2339650, 2756300, 4024198, 4679300, 8048396, 10060495, 20120990, 40241980, 50302475, 100604950, 201209900]

約数ペア:

[(1, 201209900), (2, 100604950), (4, 50302475), (5, 40241980), (10, 20120990), (20, 10060495), (25, 8048396), (43, 4679300), (50, 4024198), (73, 2756300), (86, 2339650), (100, 2012099), (146, 1378150), (172, 1169825), (215, 935860), (292, 689075), (365, 551260), (430, 467930), (641, 313900), (730, 275630), (860, 233965), (1075, 187172), (1282, 156950), (1460, 137815), (1825, 110252), (2150, 93586), (2564, 78475), (3139, 64100), (3205, 62780), (3650, 55126), (4300, 46793), (6278, 32050), (6410, 31390), (7300, 27563), (12556, 16025), (12820, 15695)]