389858480

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{461}}^1$

素因数の和:547

約数の個数: 120

約数和(自身を含む): 1023965712

約数和(自身を除く): 634107232

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 220, 248, 310, 341, 440, 461, 496, 620, 682, 880, 922, 961, 1240, 1364, 1705, 1844, 1922, 2305, 2480, 2728, 3410, 3688, 3844, 4610, 4805, 5071, 5456, 6820, 7376, 7688, 9220, 9610, 10142, 10571, 13640, 14291, 15376, 18440, 19220, 20284, 21142, 25355, 27280, 28582, 36880, 38440, 40568, 42284, 50710, 52855, 57164, 71455, 76880, 81136, 84568, 101420, 105710, 114328, 142910, 157201, 169136, 202840, 211420, 228656, 285820, 314402, 405680, 422840, 443021, 571640, 628804, 786005, 845680, 886042, 1143280, 1257608, 1572010, 1772084, 2215105, 2515216, 3144020, 3544168, 4430210, 4873231, 6288040, 7088336, 8860420, 9746462, 12576080, 17720840, 19492924, 24366155, 35441680, 38985848, 48732310, 77971696, 97464620, 194929240, 389858480]

約数ペア:

[(1, 389858480), (2, 194929240), (4, 97464620), (5, 77971696), (8, 48732310), (10, 38985848), (11, 35441680), (16, 24366155), (20, 19492924), (22, 17720840), (31, 12576080), (40, 9746462), (44, 8860420), (55, 7088336), (62, 6288040), (80, 4873231), (88, 4430210), (110, 3544168), (124, 3144020), (155, 2515216), (176, 2215105), (220, 1772084), (248, 1572010), (310, 1257608), (341, 1143280), (440, 886042), (461, 845680), (496, 786005), (620, 628804), (682, 571640), (880, 443021), (922, 422840), (961, 405680), (1240, 314402), (1364, 285820), (1705, 228656), (1844, 211420), (1922, 202840), (2305, 169136), (2480, 157201), (2728, 142910), (3410, 114328), (3688, 105710), (3844, 101420), (4610, 84568), (4805, 81136), (5071, 76880), (5456, 71455), (6820, 57164), (7376, 52855), (7688, 50710), (9220, 42284), (9610, 40568), (10142, 38440), (10571, 36880), (13640, 28582), (14291, 27280), (15376, 25355), (18440, 21142), (19220, 20284)]