281487812

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{761}}^1$

素因数の和:972

約数の個数: 48

約数和(自身を含む): 539374080

約数和(自身を除く): 257886268

約数列:

[1, 2, 4, 19, 31, 38, 62, 76, 124, 157, 314, 589, 628, 761, 1178, 1522, 2356, 2983, 3044, 4867, 5966, 9734, 11932, 14459, 19468, 23591, 28918, 47182, 57836, 92473, 94364, 119477, 184946, 238954, 369892, 448229, 477908, 896458, 1792916, 2270063, 3703787, 4540126, 7407574, 9080252, 14815148, 70371953, 140743906, 281487812]

約数ペア:

[(1, 281487812), (2, 140743906), (4, 70371953), (19, 14815148), (31, 9080252), (38, 7407574), (62, 4540126), (76, 3703787), (124, 2270063), (157, 1792916), (314, 896458), (589, 477908), (628, 448229), (761, 369892), (1178, 238954), (1522, 184946), (2356, 119477), (2983, 94364), (3044, 92473), (4867, 57836), (5966, 47182), (9734, 28918), (11932, 23591), (14459, 19468)]