640308768

素因数分解:

$2^5\times 3^1\times {\mathrm{11}}^2\times {\mathrm{199}}^1\times {\mathrm{277}}^1$

素因数の和:511

約数の個数: 144

約数和(自身を含む): 1863489600

約数和(自身を除く): 1223180832

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 32, 33, 44, 48, 66, 88, 96, 121, 132, 176, 199, 242, 264, 277, 352, 363, 398, 484, 528, 554, 597, 726, 796, 831, 968, 1056, 1108, 1194, 1452, 1592, 1662, 1936, 2189, 2216, 2388, 2904, 3047, 3184, 3324, 3872, 4378, 4432, 4776, 5808, 6094, 6368, 6567, 6648, 8756, 8864, 9141, 9552, 11616, 12188, 13134, 13296, 17512, 18282, 19104, 24079, 24376, 26268, 26592, 33517, 35024, 36564, 48158, 48752, 52536, 55123, 67034, 70048, 72237, 73128, 96316, 97504, 100551, 105072, 110246, 134068, 144474, 146256, 165369, 192632, 201102, 210144, 220492, 268136, 288948, 292512, 330738, 385264, 402204, 440984, 536272, 577896, 606353, 661476, 770528, 804408, 881968, 1072544, 1155792, 1212706, 1322952, 1608816, 1763936, 1819059, 2311584, 2425412, 2645904, 3217632, 3638118, 4850824, 5291808, 6669883, 7276236, 9701648, 13339766, 14552472, 19403296, 20009649, 26679532, 29104944, 40019298, 53359064, 58209888, 80038596, 106718128, 160077192, 213436256, 320154384, 640308768]

約数ペア:

[(1, 640308768), (2, 320154384), (3, 213436256), (4, 160077192), (6, 106718128), (8, 80038596), (11, 58209888), (12, 53359064), (16, 40019298), (22, 29104944), (24, 26679532), (32, 20009649), (33, 19403296), (44, 14552472), (48, 13339766), (66, 9701648), (88, 7276236), (96, 6669883), (121, 5291808), (132, 4850824), (176, 3638118), (199, 3217632), (242, 2645904), (264, 2425412), (277, 2311584), (352, 1819059), (363, 1763936), (398, 1608816), (484, 1322952), (528, 1212706), (554, 1155792), (597, 1072544), (726, 881968), (796, 804408), (831, 770528), (968, 661476), (1056, 606353), (1108, 577896), (1194, 536272), (1452, 440984), (1592, 402204), (1662, 385264), (1936, 330738), (2189, 292512), (2216, 288948), (2388, 268136), (2904, 220492), (3047, 210144), (3184, 201102), (3324, 192632), (3872, 165369), (4378, 146256), (4432, 144474), (4776, 134068), (5808, 110246), (6094, 105072), (6368, 100551), (6567, 97504), (6648, 96316), (8756, 73128), (8864, 72237), (9141, 70048), (9552, 67034), (11616, 55123), (12188, 52536), (13134, 48752), (13296, 48158), (17512, 36564), (18282, 35024), (19104, 33517), (24079, 26592), (24376, 26268)]