128049700

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{307}}^1$

素因数の和:461

約数の個数: 72

約数和(自身を含む): 288196832

約数和(自身を除く): 160147132

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 97, 100, 172, 194, 215, 307, 388, 430, 485, 614, 860, 970, 1075, 1228, 1535, 1940, 2150, 2425, 3070, 4171, 4300, 4850, 6140, 7675, 8342, 9700, 13201, 15350, 16684, 20855, 26402, 29779, 30700, 41710, 52804, 59558, 66005, 83420, 104275, 119116, 132010, 148895, 208550, 264020, 297790, 330025, 417100, 595580, 660050, 744475, 1280497, 1320100, 1488950, 2560994, 2977900, 5121988, 6402485, 12804970, 25609940, 32012425, 64024850, 128049700]

約数ペア:

[(1, 128049700), (2, 64024850), (4, 32012425), (5, 25609940), (10, 12804970), (20, 6402485), (25, 5121988), (43, 2977900), (50, 2560994), (86, 1488950), (97, 1320100), (100, 1280497), (172, 744475), (194, 660050), (215, 595580), (307, 417100), (388, 330025), (430, 297790), (485, 264020), (614, 208550), (860, 148895), (970, 132010), (1075, 119116), (1228, 104275), (1535, 83420), (1940, 66005), (2150, 59558), (2425, 52804), (3070, 41710), (4171, 30700), (4300, 29779), (4850, 26402), (6140, 20855), (7675, 16684), (8342, 15350), (9700, 13201)]