78971220

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:259

約数の個数: 192

約数和(自身を含む): 266112000

約数和(自身を除く): 187140780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 43, 45, 54, 57, 60, 76, 86, 90, 95, 108, 114, 129, 135, 171, 172, 179, 180, 190, 215, 228, 258, 270, 285, 342, 358, 380, 387, 430, 513, 516, 537, 540, 570, 645, 684, 716, 774, 817, 855, 860, 895, 1026, 1074, 1140, 1161, 1290, 1548, 1611, 1634, 1710, 1790, 1935, 2052, 2148, 2322, 2451, 2565, 2580, 2685, 3222, 3268, 3401, 3420, 3580, 3870, 4085, 4644, 4833, 4902, 5130, 5370, 5805, 6444, 6802, 7353, 7697, 7740, 8055, 8170, 9666, 9804, 10203, 10260, 10740, 11610, 12255, 13604, 14706, 15394, 16110, 16340, 17005, 19332, 20406, 22059, 23091, 23220, 24165, 24510, 29412, 30609, 30788, 32220, 34010, 36765, 38485, 40812, 44118, 46182, 48330, 49020, 51015, 61218, 68020, 69273, 73530, 76970, 88236, 91827, 92364, 96660, 102030, 110295, 115455, 122436, 138546, 146243, 147060, 153045, 153940, 183654, 204060, 207819, 220590, 230910, 277092, 292486, 306090, 346365, 367308, 415638, 438729, 441180, 459135, 461820, 584972, 612180, 692730, 731215, 831276, 877458, 918270, 1039095, 1316187, 1385460, 1462430, 1754916, 1836540, 2078190, 2193645, 2632374, 2924860, 3948561, 4156380, 4387290, 5264748, 6580935, 7897122, 8774580, 13161870, 15794244, 19742805, 26323740, 39485610, 78971220]

約数ペア:

[(1, 78971220), (2, 39485610), (3, 26323740), (4, 19742805), (5, 15794244), (6, 13161870), (9, 8774580), (10, 7897122), (12, 6580935), (15, 5264748), (18, 4387290), (19, 4156380), (20, 3948561), (27, 2924860), (30, 2632374), (36, 2193645), (38, 2078190), (43, 1836540), (45, 1754916), (54, 1462430), (57, 1385460), (60, 1316187), (76, 1039095), (86, 918270), (90, 877458), (95, 831276), (108, 731215), (114, 692730), (129, 612180), (135, 584972), (171, 461820), (172, 459135), (179, 441180), (180, 438729), (190, 415638), (215, 367308), (228, 346365), (258, 306090), (270, 292486), (285, 277092), (342, 230910), (358, 220590), (380, 207819), (387, 204060), (430, 183654), (513, 153940), (516, 153045), (537, 147060), (540, 146243), (570, 138546), (645, 122436), (684, 115455), (716, 110295), (774, 102030), (817, 96660), (855, 92364), (860, 91827), (895, 88236), (1026, 76970), (1074, 73530), (1140, 69273), (1161, 68020), (1290, 61218), (1548, 51015), (1611, 49020), (1634, 48330), (1710, 46182), (1790, 44118), (1935, 40812), (2052, 38485), (2148, 36765), (2322, 34010), (2451, 32220), (2565, 30788), (2580, 30609), (2685, 29412), (3222, 24510), (3268, 24165), (3401, 23220), (3420, 23091), (3580, 22059), (3870, 20406), (4085, 19332), (4644, 17005), (4833, 16340), (4902, 16110), (5130, 15394), (5370, 14706), (5805, 13604), (6444, 12255), (6802, 11610), (7353, 10740), (7697, 10260), (7740, 10203), (8055, 9804), (8170, 9666)]