66265840

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{227}}^1$

素因数の和:370

約数の個数: 80

約数和(自身を含む): 160302240

約数和(自身を除く): 94036400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 89, 164, 178, 205, 227, 328, 356, 410, 445, 454, 656, 712, 820, 890, 908, 1135, 1424, 1640, 1780, 1816, 2270, 3280, 3560, 3632, 3649, 4540, 7120, 7298, 9080, 9307, 14596, 18160, 18245, 18614, 20203, 29192, 36490, 37228, 40406, 46535, 58384, 72980, 74456, 80812, 93070, 101015, 145960, 148912, 161624, 186140, 202030, 291920, 323248, 372280, 404060, 744560, 808120, 828323, 1616240, 1656646, 3313292, 4141615, 6626584, 8283230, 13253168, 16566460, 33132920, 66265840]

約数ペア:

[(1, 66265840), (2, 33132920), (4, 16566460), (5, 13253168), (8, 8283230), (10, 6626584), (16, 4141615), (20, 3313292), (40, 1656646), (41, 1616240), (80, 828323), (82, 808120), (89, 744560), (164, 404060), (178, 372280), (205, 323248), (227, 291920), (328, 202030), (356, 186140), (410, 161624), (445, 148912), (454, 145960), (656, 101015), (712, 93070), (820, 80812), (890, 74456), (908, 72980), (1135, 58384), (1424, 46535), (1640, 40406), (1780, 37228), (1816, 36490), (2270, 29192), (3280, 20203), (3560, 18614), (3632, 18245), (3649, 18160), (4540, 14596), (7120, 9307), (7298, 9080)]