90097900

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{911}}^1$

素因数の和:991

約数の個数: 72

約数和(自身を含む): 208986624

約数和(自身を除く): 118888724

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 43, 46, 50, 86, 92, 100, 115, 172, 215, 230, 430, 460, 575, 860, 911, 989, 1075, 1150, 1822, 1978, 2150, 2300, 3644, 3956, 4300, 4555, 4945, 9110, 9890, 18220, 19780, 20953, 22775, 24725, 39173, 41906, 45550, 49450, 78346, 83812, 91100, 98900, 104765, 156692, 195865, 209530, 391730, 419060, 523825, 783460, 900979, 979325, 1047650, 1801958, 1958650, 2095300, 3603916, 3917300, 4504895, 9009790, 18019580, 22524475, 45048950, 90097900]

約数ペア:

[(1, 90097900), (2, 45048950), (4, 22524475), (5, 18019580), (10, 9009790), (20, 4504895), (23, 3917300), (25, 3603916), (43, 2095300), (46, 1958650), (50, 1801958), (86, 1047650), (92, 979325), (100, 900979), (115, 783460), (172, 523825), (215, 419060), (230, 391730), (430, 209530), (460, 195865), (575, 156692), (860, 104765), (911, 98900), (989, 91100), (1075, 83812), (1150, 78346), (1822, 49450), (1978, 45550), (2150, 41906), (2300, 39173), (3644, 24725), (3956, 22775), (4300, 20953), (4555, 19780), (4945, 18220), (9110, 9890)]