254339410

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1\times {\mathrm{263}}^1$

素因数の和:499

約数の個数: 64

約数和(自身を含む): 509338368

約数和(自身を除く): 254998958

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 130, 173, 215, 263, 346, 430, 526, 559, 865, 1118, 1315, 1730, 2249, 2630, 2795, 3419, 4498, 5590, 6838, 7439, 11245, 11309, 14878, 17095, 22490, 22618, 34190, 37195, 45499, 56545, 74390, 90998, 96707, 113090, 147017, 193414, 227495, 294034, 454990, 483535, 591487, 735085, 967070, 1182974, 1470170, 1956457, 2957435, 3912914, 5914870, 9782285, 19564570, 25433941, 50867882, 127169705, 254339410]

約数ペア:

[(1, 254339410), (2, 127169705), (5, 50867882), (10, 25433941), (13, 19564570), (26, 9782285), (43, 5914870), (65, 3912914), (86, 2957435), (130, 1956457), (173, 1470170), (215, 1182974), (263, 967070), (346, 735085), (430, 591487), (526, 483535), (559, 454990), (865, 294034), (1118, 227495), (1315, 193414), (1730, 147017), (2249, 113090), (2630, 96707), (2795, 90998), (3419, 74390), (4498, 56545), (5590, 45499), (6838, 37195), (7439, 34190), (11245, 22618), (11309, 22490), (14878, 17095)]