217875580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{163}}^1$

素因数の和:335

約数の個数: 96

約数和(自身を含む): 510318144

約数和(自身を除く): 292442564

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 97, 106, 130, 163, 194, 212, 260, 265, 326, 388, 485, 530, 652, 689, 815, 970, 1060, 1261, 1378, 1630, 1940, 2119, 2522, 2756, 3260, 3445, 4238, 5044, 5141, 6305, 6890, 8476, 8639, 10282, 10595, 12610, 13780, 15811, 17278, 20564, 21190, 25220, 25705, 31622, 34556, 42380, 43195, 51410, 63244, 66833, 79055, 86390, 102820, 112307, 133666, 158110, 172780, 205543, 224614, 267332, 316220, 334165, 411086, 449228, 561535, 668330, 822172, 837983, 1027715, 1123070, 1336660, 1675966, 2055430, 2246140, 3351932, 4110860, 4189915, 8379830, 10893779, 16759660, 21787558, 43575116, 54468895, 108937790, 217875580]

約数ペア:

[(1, 217875580), (2, 108937790), (4, 54468895), (5, 43575116), (10, 21787558), (13, 16759660), (20, 10893779), (26, 8379830), (52, 4189915), (53, 4110860), (65, 3351932), (97, 2246140), (106, 2055430), (130, 1675966), (163, 1336660), (194, 1123070), (212, 1027715), (260, 837983), (265, 822172), (326, 668330), (388, 561535), (485, 449228), (530, 411086), (652, 334165), (689, 316220), (815, 267332), (970, 224614), (1060, 205543), (1261, 172780), (1378, 158110), (1630, 133666), (1940, 112307), (2119, 102820), (2522, 86390), (2756, 79055), (3260, 66833), (3445, 63244), (4238, 51410), (5044, 43195), (5141, 42380), (6305, 34556), (6890, 31622), (8476, 25705), (8639, 25220), (10282, 21190), (10595, 20564), (12610, 17278), (13780, 15811)]