178152940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{907}}^1$

素因数の和:1007

約数の個数: 96

約数和(自身を含む): 453970944

約数和(自身を除く): 275818004

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 61, 70, 92, 115, 122, 140, 161, 230, 244, 305, 322, 427, 460, 610, 644, 805, 854, 907, 1220, 1403, 1610, 1708, 1814, 2135, 2806, 3220, 3628, 4270, 4535, 5612, 6349, 7015, 8540, 9070, 9821, 12698, 14030, 18140, 19642, 20861, 25396, 28060, 31745, 39284, 41722, 49105, 55327, 63490, 83444, 98210, 104305, 110654, 126980, 146027, 196420, 208610, 221308, 276635, 292054, 387289, 417220, 553270, 584108, 730135, 774578, 1106540, 1272521, 1460270, 1549156, 1936445, 2545042, 2920540, 3872890, 5090084, 6362605, 7745780, 8907647, 12725210, 17815294, 25450420, 35630588, 44538235, 89076470, 178152940]

約数ペア:

[(1, 178152940), (2, 89076470), (4, 44538235), (5, 35630588), (7, 25450420), (10, 17815294), (14, 12725210), (20, 8907647), (23, 7745780), (28, 6362605), (35, 5090084), (46, 3872890), (61, 2920540), (70, 2545042), (92, 1936445), (115, 1549156), (122, 1460270), (140, 1272521), (161, 1106540), (230, 774578), (244, 730135), (305, 584108), (322, 553270), (427, 417220), (460, 387289), (610, 292054), (644, 276635), (805, 221308), (854, 208610), (907, 196420), (1220, 146027), (1403, 126980), (1610, 110654), (1708, 104305), (1814, 98210), (2135, 83444), (2806, 63490), (3220, 55327), (3628, 49105), (4270, 41722), (4535, 39284), (5612, 31745), (6349, 28060), (7015, 25396), (8540, 20861), (9070, 19642), (9821, 18140), (12698, 14030)]