2021521700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{641}}^1$

素因数の和:774

約数の個数: 144

約数和(自身を含む): 4975181568

約数和(自身を除く): 2953659868

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 47, 50, 55, 61, 94, 100, 110, 122, 188, 220, 235, 244, 275, 305, 470, 517, 550, 610, 641, 671, 940, 1034, 1100, 1175, 1220, 1282, 1342, 1525, 2068, 2350, 2564, 2585, 2684, 2867, 3050, 3205, 3355, 4700, 5170, 5734, 6100, 6410, 6710, 7051, 10340, 11468, 12820, 12925, 13420, 14102, 14335, 16025, 16775, 25850, 28204, 28670, 30127, 31537, 32050, 33550, 35255, 39101, 51700, 57340, 60254, 63074, 64100, 67100, 70510, 71675, 78202, 120508, 126148, 141020, 143350, 150635, 156404, 157685, 176275, 195505, 286700, 301270, 315370, 331397, 352550, 391010, 430111, 602540, 630740, 662794, 705100, 753175, 782020, 788425, 860222, 977525, 1325588, 1506350, 1576850, 1656985, 1720444, 1837747, 1955050, 2150555, 3012700, 3153700, 3313970, 3675494, 3910100, 4301110, 6627940, 7350988, 8284925, 8602220, 9188735, 10752775, 16569850, 18377470, 20215217, 21505550, 33139700, 36754940, 40430434, 43011100, 45943675, 80860868, 91887350, 101076085, 183774700, 202152170, 404304340, 505380425, 1010760850, 2021521700]

約数ペア:

[(1, 2021521700), (2, 1010760850), (4, 505380425), (5, 404304340), (10, 202152170), (11, 183774700), (20, 101076085), (22, 91887350), (25, 80860868), (44, 45943675), (47, 43011100), (50, 40430434), (55, 36754940), (61, 33139700), (94, 21505550), (100, 20215217), (110, 18377470), (122, 16569850), (188, 10752775), (220, 9188735), (235, 8602220), (244, 8284925), (275, 7350988), (305, 6627940), (470, 4301110), (517, 3910100), (550, 3675494), (610, 3313970), (641, 3153700), (671, 3012700), (940, 2150555), (1034, 1955050), (1100, 1837747), (1175, 1720444), (1220, 1656985), (1282, 1576850), (1342, 1506350), (1525, 1325588), (2068, 977525), (2350, 860222), (2564, 788425), (2585, 782020), (2684, 753175), (2867, 705100), (3050, 662794), (3205, 630740), (3355, 602540), (4700, 430111), (5170, 391010), (5734, 352550), (6100, 331397), (6410, 315370), (6710, 301270), (7051, 286700), (10340, 195505), (11468, 176275), (12820, 157685), (12925, 156404), (13420, 150635), (14102, 143350), (14335, 141020), (16025, 126148), (16775, 120508), (25850, 78202), (28204, 71675), (28670, 70510), (30127, 67100), (31537, 64100), (32050, 63074), (33550, 60254), (35255, 57340), (39101, 51700)]