256099400

素因数分解:

$2^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{307}}^1$

素因数の和:463

約数の個数: 96

約数和(自身を含む): 617564640

約数和(自身を除く): 361465240

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 97, 100, 172, 194, 200, 215, 307, 344, 388, 430, 485, 614, 776, 860, 970, 1075, 1228, 1535, 1720, 1940, 2150, 2425, 2456, 3070, 3880, 4171, 4300, 4850, 6140, 7675, 8342, 8600, 9700, 12280, 13201, 15350, 16684, 19400, 20855, 26402, 29779, 30700, 33368, 41710, 52804, 59558, 61400, 66005, 83420, 104275, 105608, 119116, 132010, 148895, 166840, 208550, 238232, 264020, 297790, 330025, 417100, 528040, 595580, 660050, 744475, 834200, 1191160, 1280497, 1320100, 1488950, 2560994, 2640200, 2977900, 5121988, 5955800, 6402485, 10243976, 12804970, 25609940, 32012425, 51219880, 64024850, 128049700, 256099400]

約数ペア:

[(1, 256099400), (2, 128049700), (4, 64024850), (5, 51219880), (8, 32012425), (10, 25609940), (20, 12804970), (25, 10243976), (40, 6402485), (43, 5955800), (50, 5121988), (86, 2977900), (97, 2640200), (100, 2560994), (172, 1488950), (194, 1320100), (200, 1280497), (215, 1191160), (307, 834200), (344, 744475), (388, 660050), (430, 595580), (485, 528040), (614, 417100), (776, 330025), (860, 297790), (970, 264020), (1075, 238232), (1228, 208550), (1535, 166840), (1720, 148895), (1940, 132010), (2150, 119116), (2425, 105608), (2456, 104275), (3070, 83420), (3880, 66005), (4171, 61400), (4300, 59558), (4850, 52804), (6140, 41710), (7675, 33368), (8342, 30700), (8600, 29779), (9700, 26402), (12280, 20855), (13201, 19400), (15350, 16684)]