203940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1$

素因数の和:129

約数の個数: 72

約数和(自身を含む): 681408

約数和(自身を除く): 477468

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, 103, 110, 132, 165, 180, 198, 206, 220, 309, 330, 396, 412, 495, 515, 618, 660, 927, 990, 1030, 1133, 1236, 1545, 1854, 1980, 2060, 2266, 3090, 3399, 3708, 4532, 4635, 5665, 6180, 6798, 9270, 10197, 11330, 13596, 16995, 18540, 20394, 22660, 33990, 40788, 50985, 67980, 101970, 203940]

約数ペア:

[(1, 203940), (2, 101970), (3, 67980), (4, 50985), (5, 40788), (6, 33990), (9, 22660), (10, 20394), (11, 18540), (12, 16995), (15, 13596), (18, 11330), (20, 10197), (22, 9270), (30, 6798), (33, 6180), (36, 5665), (44, 4635), (45, 4532), (55, 3708), (60, 3399), (66, 3090), (90, 2266), (99, 2060), (103, 1980), (110, 1854), (132, 1545), (165, 1236), (180, 1133), (198, 1030), (206, 990), (220, 927), (309, 660), (330, 618), (396, 515), (412, 495)]