72908240

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53609}}^1$

素因数の和:53639

約数の個数: 40

約数和(自身を含む): 179486280

約数和(自身を除く): 106578040

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 53609, 107218, 214436, 268045, 428872, 536090, 857744, 911353, 1072180, 1822706, 2144360, 3645412, 4288720, 4556765, 7290824, 9113530, 14581648, 18227060, 36454120, 72908240]

約数ペア:

[(1, 72908240), (2, 36454120), (4, 18227060), (5, 14581648), (8, 9113530), (10, 7290824), (16, 4556765), (17, 4288720), (20, 3645412), (34, 2144360), (40, 1822706), (68, 1072180), (80, 911353), (85, 857744), (136, 536090), (170, 428872), (272, 268045), (340, 214436), (680, 107218), (1360, 53609)]