198119740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{15551}}^1$

素因数の和:15587

約数の個数: 72

約数和(自身を含む): 521240832

約数和(自身を除く): 323121092

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 910, 980, 1274, 1820, 2548, 3185, 6370, 12740, 15551, 31102, 62204, 77755, 108857, 155510, 202163, 217714, 311020, 404326, 435428, 544285, 761999, 808652, 1010815, 1088570, 1415141, 1523998, 2021630, 2177140, 2830282, 3047996, 3809995, 4043260, 5660564, 7075705, 7619990, 9905987, 14151410, 15239980, 19811974, 28302820, 39623948, 49529935, 99059870, 198119740]

約数ペア:

[(1, 198119740), (2, 99059870), (4, 49529935), (5, 39623948), (7, 28302820), (10, 19811974), (13, 15239980), (14, 14151410), (20, 9905987), (26, 7619990), (28, 7075705), (35, 5660564), (49, 4043260), (52, 3809995), (65, 3047996), (70, 2830282), (91, 2177140), (98, 2021630), (130, 1523998), (140, 1415141), (182, 1088570), (196, 1010815), (245, 808652), (260, 761999), (364, 544285), (455, 435428), (490, 404326), (637, 311020), (910, 217714), (980, 202163), (1274, 155510), (1820, 108857), (2548, 77755), (3185, 62204), (6370, 31102), (12740, 15551)]