201997880240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1397329}}^1$

素因数の和:1397494

約数の個数: 80

約数和(自身を含む): 509410624800

約数和(自身を除く): 307412744560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 139, 208, 260, 278, 520, 556, 695, 1040, 1112, 1390, 1807, 2224, 2780, 3614, 5560, 7228, 9035, 11120, 14456, 18070, 28912, 36140, 72280, 144560, 1397329, 2794658, 5589316, 6986645, 11178632, 13973290, 18165277, 22357264, 27946580, 36330554, 55893160, 72661108, 90826385, 111786320, 145322216, 181652770, 194228731, 290644432, 363305540, 388457462, 726611080, 776914924, 971143655, 1453222160, 1553829848, 1942287310, 2524973503, 3107659696, 3884574620, 5049947006, 7769149240, 10099894012, 12624867515, 15538298480, 20199788024, 25249735030, 40399576048, 50499470060, 100998940120, 201997880240]

約数ペア:

[(1, 201997880240), (2, 100998940120), (4, 50499470060), (5, 40399576048), (8, 25249735030), (10, 20199788024), (13, 15538298480), (16, 12624867515), (20, 10099894012), (26, 7769149240), (40, 5049947006), (52, 3884574620), (65, 3107659696), (80, 2524973503), (104, 1942287310), (130, 1553829848), (139, 1453222160), (208, 971143655), (260, 776914924), (278, 726611080), (520, 388457462), (556, 363305540), (695, 290644432), (1040, 194228731), (1112, 181652770), (1390, 145322216), (1807, 111786320), (2224, 90826385), (2780, 72661108), (3614, 55893160), (5560, 36330554), (7228, 27946580), (9035, 22357264), (11120, 18165277), (14456, 13973290), (18070, 11178632), (28912, 6986645), (36140, 5589316), (72280, 2794658), (144560, 1397329)]