28661220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{43}}^1$

素因数の和:111

約数の個数: 216

約数和(自身を含む): 106282176

約数和(自身を除く): 77620956

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 28, 30, 35, 36, 42, 43, 45, 46, 60, 63, 69, 70, 84, 86, 90, 92, 105, 115, 126, 129, 138, 140, 161, 172, 180, 207, 210, 215, 230, 252, 258, 276, 301, 315, 322, 345, 387, 414, 420, 430, 460, 483, 516, 529, 602, 630, 644, 645, 690, 774, 805, 828, 860, 903, 966, 989, 1035, 1058, 1204, 1260, 1290, 1380, 1449, 1505, 1548, 1587, 1610, 1806, 1932, 1935, 1978, 2070, 2116, 2415, 2580, 2645, 2709, 2898, 2967, 3010, 3174, 3220, 3612, 3703, 3870, 3956, 4140, 4515, 4761, 4830, 4945, 5290, 5418, 5796, 5934, 6020, 6348, 6923, 7245, 7406, 7740, 7935, 8901, 9030, 9522, 9660, 9890, 10580, 10836, 11109, 11868, 13545, 13846, 14490, 14812, 14835, 15870, 17802, 18060, 18515, 19044, 19780, 20769, 22218, 22747, 23805, 27090, 27692, 28980, 29670, 31740, 33327, 34615, 35604, 37030, 41538, 44436, 44505, 45494, 47610, 54180, 55545, 59340, 62307, 66654, 68241, 69230, 74060, 83076, 89010, 90988, 95220, 103845, 111090, 113735, 124614, 133308, 136482, 138460, 159229, 166635, 178020, 204723, 207690, 222180, 227470, 249228, 272964, 311535, 318458, 333270, 341205, 409446, 415380, 454940, 477687, 623070, 636916, 666540, 682410, 796145, 818892, 955374, 1023615, 1246140, 1364820, 1433061, 1592290, 1910748, 2047230, 2388435, 2866122, 3184580, 4094460, 4776870, 5732244, 7165305, 9553740, 14330610, 28661220]

約数ペア:

[(1, 28661220), (2, 14330610), (3, 9553740), (4, 7165305), (5, 5732244), (6, 4776870), (7, 4094460), (9, 3184580), (10, 2866122), (12, 2388435), (14, 2047230), (15, 1910748), (18, 1592290), (20, 1433061), (21, 1364820), (23, 1246140), (28, 1023615), (30, 955374), (35, 818892), (36, 796145), (42, 682410), (43, 666540), (45, 636916), (46, 623070), (60, 477687), (63, 454940), (69, 415380), (70, 409446), (84, 341205), (86, 333270), (90, 318458), (92, 311535), (105, 272964), (115, 249228), (126, 227470), (129, 222180), (138, 207690), (140, 204723), (161, 178020), (172, 166635), (180, 159229), (207, 138460), (210, 136482), (215, 133308), (230, 124614), (252, 113735), (258, 111090), (276, 103845), (301, 95220), (315, 90988), (322, 89010), (345, 83076), (387, 74060), (414, 69230), (420, 68241), (430, 66654), (460, 62307), (483, 59340), (516, 55545), (529, 54180), (602, 47610), (630, 45494), (644, 44505), (645, 44436), (690, 41538), (774, 37030), (805, 35604), (828, 34615), (860, 33327), (903, 31740), (966, 29670), (989, 28980), (1035, 27692), (1058, 27090), (1204, 23805), (1260, 22747), (1290, 22218), (1380, 20769), (1449, 19780), (1505, 19044), (1548, 18515), (1587, 18060), (1610, 17802), (1806, 15870), (1932, 14835), (1935, 14812), (1978, 14490), (2070, 13846), (2116, 13545), (2415, 11868), (2580, 11109), (2645, 10836), (2709, 10580), (2898, 9890), (2967, 9660), (3010, 9522), (3174, 9030), (3220, 8901), (3612, 7935), (3703, 7740), (3870, 7406), (3956, 7245), (4140, 6923), (4515, 6348), (4761, 6020), (4830, 5934), (4945, 5796), (5290, 5418)]