209675640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2243}}^1$

素因数の和:2317

約数の個数: 128

約数和(自身を含む): 678585600

約数和(自身を除く): 468909960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 41, 57, 60, 76, 82, 95, 114, 120, 123, 152, 164, 190, 205, 228, 246, 285, 328, 380, 410, 456, 492, 570, 615, 760, 779, 820, 984, 1140, 1230, 1558, 1640, 2243, 2280, 2337, 2460, 3116, 3895, 4486, 4674, 4920, 6232, 6729, 7790, 8972, 9348, 11215, 11685, 13458, 15580, 17944, 18696, 22430, 23370, 26916, 31160, 33645, 42617, 44860, 46740, 53832, 67290, 85234, 89720, 91963, 93480, 127851, 134580, 170468, 183926, 213085, 255702, 269160, 275889, 340936, 367852, 426170, 459815, 511404, 551778, 639255, 735704, 852340, 919630, 1022808, 1103556, 1278510, 1379445, 1704680, 1747297, 1839260, 2207112, 2557020, 2758890, 3494594, 3678520, 5114040, 5241891, 5517780, 6989188, 8736485, 10483782, 11035560, 13978376, 17472970, 20967564, 26209455, 34945940, 41935128, 52418910, 69891880, 104837820, 209675640]

約数ペア:

[(1, 209675640), (2, 104837820), (3, 69891880), (4, 52418910), (5, 41935128), (6, 34945940), (8, 26209455), (10, 20967564), (12, 17472970), (15, 13978376), (19, 11035560), (20, 10483782), (24, 8736485), (30, 6989188), (38, 5517780), (40, 5241891), (41, 5114040), (57, 3678520), (60, 3494594), (76, 2758890), (82, 2557020), (95, 2207112), (114, 1839260), (120, 1747297), (123, 1704680), (152, 1379445), (164, 1278510), (190, 1103556), (205, 1022808), (228, 919630), (246, 852340), (285, 735704), (328, 639255), (380, 551778), (410, 511404), (456, 459815), (492, 426170), (570, 367852), (615, 340936), (760, 275889), (779, 269160), (820, 255702), (984, 213085), (1140, 183926), (1230, 170468), (1558, 134580), (1640, 127851), (2243, 93480), (2280, 91963), (2337, 89720), (2460, 85234), (3116, 67290), (3895, 53832), (4486, 46740), (4674, 44860), (4920, 42617), (6232, 33645), (6729, 31160), (7790, 26916), (8972, 23370), (9348, 22430), (11215, 18696), (11685, 17944), (13458, 15580)]