210997560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{397}}^1$

素因数の和:557

約数の個数: 128

約数和(自身を含む): 655649280

約数和(自身を除く): 444651720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 103, 120, 129, 172, 206, 215, 258, 309, 344, 397, 412, 430, 515, 516, 618, 645, 794, 824, 860, 1030, 1032, 1191, 1236, 1290, 1545, 1588, 1720, 1985, 2060, 2382, 2472, 2580, 3090, 3176, 3970, 4120, 4429, 4764, 5160, 5955, 6180, 7940, 8858, 9528, 11910, 12360, 13287, 15880, 17071, 17716, 22145, 23820, 26574, 34142, 35432, 40891, 44290, 47640, 51213, 53148, 66435, 68284, 81782, 85355, 88580, 102426, 106296, 122673, 132870, 136568, 163564, 170710, 177160, 204455, 204852, 245346, 256065, 265740, 327128, 341420, 408910, 409704, 490692, 512130, 531480, 613365, 682840, 817820, 981384, 1024260, 1226730, 1635640, 1758313, 2048520, 2453460, 3516626, 4906920, 5274939, 7033252, 8791565, 10549878, 14066504, 17583130, 21099756, 26374695, 35166260, 42199512, 52749390, 70332520, 105498780, 210997560]

約数ペア:

[(1, 210997560), (2, 105498780), (3, 70332520), (4, 52749390), (5, 42199512), (6, 35166260), (8, 26374695), (10, 21099756), (12, 17583130), (15, 14066504), (20, 10549878), (24, 8791565), (30, 7033252), (40, 5274939), (43, 4906920), (60, 3516626), (86, 2453460), (103, 2048520), (120, 1758313), (129, 1635640), (172, 1226730), (206, 1024260), (215, 981384), (258, 817820), (309, 682840), (344, 613365), (397, 531480), (412, 512130), (430, 490692), (515, 409704), (516, 408910), (618, 341420), (645, 327128), (794, 265740), (824, 256065), (860, 245346), (1030, 204852), (1032, 204455), (1191, 177160), (1236, 170710), (1290, 163564), (1545, 136568), (1588, 132870), (1720, 122673), (1985, 106296), (2060, 102426), (2382, 88580), (2472, 85355), (2580, 81782), (3090, 68284), (3176, 66435), (3970, 53148), (4120, 51213), (4429, 47640), (4764, 44290), (5160, 40891), (5955, 35432), (6180, 34142), (7940, 26574), (8858, 23820), (9528, 22145), (11910, 17716), (12360, 17071), (13287, 15880)]