281384272

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:237

約数の個数: 120

約数和(自身を含む): 648069632

約数和(自身を除く): 366685360

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 31, 34, 52, 62, 68, 104, 124, 136, 151, 208, 221, 248, 272, 289, 302, 403, 442, 496, 527, 578, 604, 806, 884, 1054, 1156, 1208, 1612, 1768, 1963, 2108, 2312, 2416, 2567, 3224, 3536, 3757, 3926, 4216, 4624, 4681, 5134, 6448, 6851, 7514, 7852, 8432, 8959, 9362, 10268, 13702, 15028, 15704, 17918, 18724, 20536, 27404, 30056, 31408, 33371, 35836, 37448, 41072, 43639, 54808, 60112, 60853, 66742, 71672, 74896, 79577, 87278, 109616, 116467, 121706, 133484, 143344, 159154, 174556, 232934, 243412, 266968, 318308, 349112, 465868, 486824, 533936, 567307, 636616, 698224, 931736, 973648, 1034501, 1134614, 1273232, 1352809, 1863472, 2069002, 2269228, 2705618, 4138004, 4538456, 5411236, 8276008, 9076912, 10822472, 16552016, 17586517, 21644944, 35173034, 70346068, 140692136, 281384272]

約数ペア:

[(1, 281384272), (2, 140692136), (4, 70346068), (8, 35173034), (13, 21644944), (16, 17586517), (17, 16552016), (26, 10822472), (31, 9076912), (34, 8276008), (52, 5411236), (62, 4538456), (68, 4138004), (104, 2705618), (124, 2269228), (136, 2069002), (151, 1863472), (208, 1352809), (221, 1273232), (248, 1134614), (272, 1034501), (289, 973648), (302, 931736), (403, 698224), (442, 636616), (496, 567307), (527, 533936), (578, 486824), (604, 465868), (806, 349112), (884, 318308), (1054, 266968), (1156, 243412), (1208, 232934), (1612, 174556), (1768, 159154), (1963, 143344), (2108, 133484), (2312, 121706), (2416, 116467), (2567, 109616), (3224, 87278), (3536, 79577), (3757, 74896), (3926, 71672), (4216, 66742), (4624, 60853), (4681, 60112), (5134, 54808), (6448, 43639), (6851, 41072), (7514, 37448), (7852, 35836), (8432, 33371), (8959, 31408), (9362, 30056), (10268, 27404), (13702, 20536), (15028, 18724), (15704, 17918)]