20890634128

素因数分解:

$2^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1237}}^1\times {\mathrm{1657}}^1$

素因数の和:2929

約数の個数: 120

約数和(自身を含む): 50777317752

約数和(自身を除く): 29886683624

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 49, 52, 56, 91, 98, 104, 112, 182, 196, 208, 364, 392, 637, 728, 784, 1237, 1274, 1456, 1657, 2474, 2548, 3314, 4948, 5096, 6628, 8659, 9896, 10192, 11599, 13256, 16081, 17318, 19792, 21541, 23198, 26512, 32162, 34636, 43082, 46396, 60613, 64324, 69272, 81193, 86164, 92792, 112567, 121226, 128648, 138544, 150787, 162386, 172328, 185584, 225134, 242452, 257296, 301574, 324772, 344656, 450268, 484904, 603148, 649544, 787969, 900536, 969808, 1055509, 1206296, 1299088, 1575938, 1801072, 2049709, 2111018, 2412592, 3151876, 4099418, 4222036, 6303752, 8198836, 8444072, 12607504, 14347963, 16397672, 16888144, 26646217, 28695926, 32795344, 53292434, 57391852, 100435741, 106584868, 114783704, 186523519, 200871482, 213169736, 229567408, 373047038, 401742964, 426339472, 746094076, 803485928, 1305664633, 1492188152, 1606971856, 2611329266, 2984376304, 5222658532, 10445317064, 20890634128]

約数ペア:

[(1, 20890634128), (2, 10445317064), (4, 5222658532), (7, 2984376304), (8, 2611329266), (13, 1606971856), (14, 1492188152), (16, 1305664633), (26, 803485928), (28, 746094076), (49, 426339472), (52, 401742964), (56, 373047038), (91, 229567408), (98, 213169736), (104, 200871482), (112, 186523519), (182, 114783704), (196, 106584868), (208, 100435741), (364, 57391852), (392, 53292434), (637, 32795344), (728, 28695926), (784, 26646217), (1237, 16888144), (1274, 16397672), (1456, 14347963), (1657, 12607504), (2474, 8444072), (2548, 8198836), (3314, 6303752), (4948, 4222036), (5096, 4099418), (6628, 3151876), (8659, 2412592), (9896, 2111018), (10192, 2049709), (11599, 1801072), (13256, 1575938), (16081, 1299088), (17318, 1206296), (19792, 1055509), (21541, 969808), (23198, 900536), (26512, 787969), (32162, 649544), (34636, 603148), (43082, 484904), (46396, 450268), (60613, 344656), (64324, 324772), (69272, 301574), (81193, 257296), (86164, 242452), (92792, 225134), (112567, 185584), (121226, 172328), (128648, 162386), (138544, 150787)]