81491300

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{3221}}^1$

素因数の和:3269

約数の個数: 72

約数和(自身を含む): 201362112

約数和(自身を除く): 119870812

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 25, 44, 46, 50, 55, 92, 100, 110, 115, 220, 230, 253, 275, 460, 506, 550, 575, 1012, 1100, 1150, 1265, 2300, 2530, 3221, 5060, 6325, 6442, 12650, 12884, 16105, 25300, 32210, 35431, 64420, 70862, 74083, 80525, 141724, 148166, 161050, 177155, 296332, 322100, 354310, 370415, 708620, 740830, 814913, 885775, 1481660, 1629826, 1771550, 1852075, 3259652, 3543100, 3704150, 4074565, 7408300, 8149130, 16298260, 20372825, 40745650, 81491300]

約数ペア:

[(1, 81491300), (2, 40745650), (4, 20372825), (5, 16298260), (10, 8149130), (11, 7408300), (20, 4074565), (22, 3704150), (23, 3543100), (25, 3259652), (44, 1852075), (46, 1771550), (50, 1629826), (55, 1481660), (92, 885775), (100, 814913), (110, 740830), (115, 708620), (220, 370415), (230, 354310), (253, 322100), (275, 296332), (460, 177155), (506, 161050), (550, 148166), (575, 141724), (1012, 80525), (1100, 74083), (1150, 70862), (1265, 64420), (2300, 35431), (2530, 32210), (3221, 25300), (5060, 16105), (6325, 12884), (6442, 12650)]