217923640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{523}}^1\times {\mathrm{947}}^1$

素因数の和:1492

約数の個数: 64

約数和(自身を含む): 536492160

約数和(自身を除く): 318568520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 523, 947, 1046, 1894, 2092, 2615, 3788, 4184, 4735, 5230, 5753, 7576, 9470, 10417, 10460, 11506, 18940, 20834, 20920, 23012, 28765, 37880, 41668, 46024, 52085, 57530, 83336, 104170, 115060, 208340, 230120, 416680, 495281, 990562, 1981124, 2476405, 3962248, 4952810, 5448091, 9905620, 10896182, 19811240, 21792364, 27240455, 43584728, 54480910, 108961820, 217923640]

約数ペア:

[(1, 217923640), (2, 108961820), (4, 54480910), (5, 43584728), (8, 27240455), (10, 21792364), (11, 19811240), (20, 10896182), (22, 9905620), (40, 5448091), (44, 4952810), (55, 3962248), (88, 2476405), (110, 1981124), (220, 990562), (440, 495281), (523, 416680), (947, 230120), (1046, 208340), (1894, 115060), (2092, 104170), (2615, 83336), (3788, 57530), (4184, 52085), (4735, 46024), (5230, 41668), (5753, 37880), (7576, 28765), (9470, 23012), (10417, 20920), (10460, 20834), (11506, 18940)]