161661780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{18329}}^1$

素因数の和:18358

約数の個数: 108

約数和(自身を含む): 570466260

約数和(自身を除く): 408804480

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2940, 4410, 8820, 18329, 36658, 54987, 73316, 91645, 109974, 128303, 164961, 183290, 219948, 256606, 274935, 329922, 366580, 384909, 513212, 549870, 641515, 659844, 769818, 824805, 898121, 1099740, 1154727, 1283030, 1539636, 1649610, 1796242, 1924545, 2309454, 2566060, 2694363, 3299220, 3592484, 3849090, 4490605, 4618908, 5388726, 5773635, 7698180, 8083089, 8981210, 10777452, 11547270, 13471815, 16166178, 17962420, 23094540, 26943630, 32332356, 40415445, 53887260, 80830890, 161661780]

約数ペア:

[(1, 161661780), (2, 80830890), (3, 53887260), (4, 40415445), (5, 32332356), (6, 26943630), (7, 23094540), (9, 17962420), (10, 16166178), (12, 13471815), (14, 11547270), (15, 10777452), (18, 8981210), (20, 8083089), (21, 7698180), (28, 5773635), (30, 5388726), (35, 4618908), (36, 4490605), (42, 3849090), (45, 3592484), (49, 3299220), (60, 2694363), (63, 2566060), (70, 2309454), (84, 1924545), (90, 1796242), (98, 1649610), (105, 1539636), (126, 1283030), (140, 1154727), (147, 1099740), (180, 898121), (196, 824805), (210, 769818), (245, 659844), (252, 641515), (294, 549870), (315, 513212), (420, 384909), (441, 366580), (490, 329922), (588, 274935), (630, 256606), (735, 219948), (882, 183290), (980, 164961), (1260, 128303), (1470, 109974), (1764, 91645), (2205, 73316), (2940, 54987), (4410, 36658), (8820, 18329)]