72218440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{2659}}^1$

素因数の和:2774

約数の個数: 64

約数和(自身を含む): 187689600

約数和(自身を除く): 115471160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 97, 140, 194, 280, 388, 485, 679, 776, 970, 1358, 1940, 2659, 2716, 3395, 3880, 5318, 5432, 6790, 10636, 13295, 13580, 18613, 21272, 26590, 27160, 37226, 53180, 74452, 93065, 106360, 148904, 186130, 257923, 372260, 515846, 744520, 1031692, 1289615, 1805461, 2063384, 2579230, 3610922, 5158460, 7221844, 9027305, 10316920, 14443688, 18054610, 36109220, 72218440]

約数ペア:

[(1, 72218440), (2, 36109220), (4, 18054610), (5, 14443688), (7, 10316920), (8, 9027305), (10, 7221844), (14, 5158460), (20, 3610922), (28, 2579230), (35, 2063384), (40, 1805461), (56, 1289615), (70, 1031692), (97, 744520), (140, 515846), (194, 372260), (280, 257923), (388, 186130), (485, 148904), (679, 106360), (776, 93065), (970, 74452), (1358, 53180), (1940, 37226), (2659, 27160), (2716, 26590), (3395, 21272), (3880, 18613), (5318, 13580), (5432, 13295), (6790, 10636)]