256883220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{947}}^1$

素因数の和:1110

約数の個数: 144

約数和(自身を含む): 857158848

約数和(自身を除く): 600275628

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 137, 165, 180, 198, 220, 274, 330, 396, 411, 495, 548, 660, 685, 822, 947, 990, 1233, 1370, 1507, 1644, 1894, 1980, 2055, 2466, 2740, 2841, 3014, 3788, 4110, 4521, 4735, 4932, 5682, 6028, 6165, 7535, 8220, 8523, 9042, 9470, 10417, 11364, 12330, 13563, 14205, 15070, 17046, 18084, 18940, 20834, 22605, 24660, 27126, 28410, 30140, 31251, 34092, 41668, 42615, 45210, 52085, 54252, 56820, 62502, 67815, 85230, 90420, 93753, 104170, 125004, 129739, 135630, 156255, 170460, 187506, 208340, 259478, 271260, 312510, 375012, 389217, 468765, 518956, 625020, 648695, 778434, 937530, 1167651, 1297390, 1427129, 1556868, 1875060, 1946085, 2335302, 2594780, 2854258, 3892170, 4281387, 4670604, 5708516, 5838255, 7135645, 7784340, 8562774, 11676510, 12844161, 14271290, 17125548, 21406935, 23353020, 25688322, 28542580, 42813870, 51376644, 64220805, 85627740, 128441610, 256883220]

約数ペア:

[(1, 256883220), (2, 128441610), (3, 85627740), (4, 64220805), (5, 51376644), (6, 42813870), (9, 28542580), (10, 25688322), (11, 23353020), (12, 21406935), (15, 17125548), (18, 14271290), (20, 12844161), (22, 11676510), (30, 8562774), (33, 7784340), (36, 7135645), (44, 5838255), (45, 5708516), (55, 4670604), (60, 4281387), (66, 3892170), (90, 2854258), (99, 2594780), (110, 2335302), (132, 1946085), (137, 1875060), (165, 1556868), (180, 1427129), (198, 1297390), (220, 1167651), (274, 937530), (330, 778434), (396, 648695), (411, 625020), (495, 518956), (548, 468765), (660, 389217), (685, 375012), (822, 312510), (947, 271260), (990, 259478), (1233, 208340), (1370, 187506), (1507, 170460), (1644, 156255), (1894, 135630), (1980, 129739), (2055, 125004), (2466, 104170), (2740, 93753), (2841, 90420), (3014, 85230), (3788, 67815), (4110, 62502), (4521, 56820), (4735, 54252), (4932, 52085), (5682, 45210), (6028, 42615), (6165, 41668), (7535, 34092), (8220, 31251), (8523, 30140), (9042, 28410), (9470, 27126), (10417, 24660), (11364, 22605), (12330, 20834), (13563, 18940), (14205, 18084), (15070, 17046)]