201695780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{647}}^1$

素因数の和:789

約数の個数: 96

約数和(自身を含む): 502951680

約数和(自身を除く): 301255900

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 109, 110, 130, 143, 218, 220, 260, 286, 436, 545, 572, 647, 715, 1090, 1199, 1294, 1417, 1430, 2180, 2398, 2588, 2834, 2860, 3235, 4796, 5668, 5995, 6470, 7085, 7117, 8411, 11990, 12940, 14170, 14234, 15587, 16822, 23980, 28340, 28468, 31174, 33644, 35585, 42055, 62348, 70523, 71170, 77935, 84110, 92521, 141046, 142340, 155870, 168220, 185042, 282092, 311740, 352615, 370084, 462605, 705230, 775753, 916799, 925210, 1410460, 1551506, 1833598, 1850420, 3103012, 3667196, 3878765, 4583995, 7757530, 9167990, 10084789, 15515060, 18335980, 20169578, 40339156, 50423945, 100847890, 201695780]

約数ペア:

[(1, 201695780), (2, 100847890), (4, 50423945), (5, 40339156), (10, 20169578), (11, 18335980), (13, 15515060), (20, 10084789), (22, 9167990), (26, 7757530), (44, 4583995), (52, 3878765), (55, 3667196), (65, 3103012), (109, 1850420), (110, 1833598), (130, 1551506), (143, 1410460), (218, 925210), (220, 916799), (260, 775753), (286, 705230), (436, 462605), (545, 370084), (572, 352615), (647, 311740), (715, 282092), (1090, 185042), (1199, 168220), (1294, 155870), (1417, 142340), (1430, 141046), (2180, 92521), (2398, 84110), (2588, 77935), (2834, 71170), (2860, 70523), (3235, 62348), (4796, 42055), (5668, 35585), (5995, 33644), (6470, 31174), (7085, 28468), (7117, 28340), (8411, 23980), (11990, 16822), (12940, 15587), (14170, 14234)]