220402980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{24989}}^1$

素因数の和:25018

約数の個数: 108

約数和(自身を含む): 777738780

約数和(自身を除く): 557335800

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, 24989, 49978, 74967, 99956, 124945, 149934, 174923, 224901, 249890, 299868, 349846, 374835, 449802, 499780, 524769, 699692, 749670, 874615, 899604, 1049538, 1124505, 1224461, 1499340, 1574307, 1749230, 2099076, 2249010, 2448922, 2623845, 3148614, 3498460, 3673383, 4498020, 4897844, 5247690, 6122305, 6297228, 7346766, 7871535, 10495380, 11020149, 12244610, 14693532, 15743070, 18366915, 22040298, 24489220, 31486140, 36733830, 44080596, 55100745, 73467660, 110201490, 220402980]

約数ペア:

[(1, 220402980), (2, 110201490), (3, 73467660), (4, 55100745), (5, 44080596), (6, 36733830), (7, 31486140), (9, 24489220), (10, 22040298), (12, 18366915), (14, 15743070), (15, 14693532), (18, 12244610), (20, 11020149), (21, 10495380), (28, 7871535), (30, 7346766), (35, 6297228), (36, 6122305), (42, 5247690), (45, 4897844), (49, 4498020), (60, 3673383), (63, 3498460), (70, 3148614), (84, 2623845), (90, 2448922), (98, 2249010), (105, 2099076), (126, 1749230), (140, 1574307), (147, 1499340), (180, 1224461), (196, 1124505), (210, 1049538), (245, 899604), (252, 874615), (294, 749670), (315, 699692), (420, 524769), (441, 499780), (490, 449802), (588, 374835), (630, 349846), (735, 299868), (882, 249890), (980, 224901), (1260, 174923), (1470, 149934), (1764, 124945), (2205, 99956), (2940, 74967), (4410, 49978), (8820, 24989)]